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March 23, 2005
High Noon for Click Fraud
SEARCH ENGINE MARKETING HAS PROVEN to be a digital gold rush, producing riches beyond the most optimistic predictions of a few years ago. But just as the gold rush of the Old West attracted con men, counterfeiters, and claim jumpers, the search engine gold rush has spawned its own breed of outlaw the click fraudster. Simply put, click fraud is the action of clicking on an advertisement where the user has no intention of interacting with, or transacting on, the destination Web site. It's any click not made in "good faith." Devoid of any talent or integrity, click fraudsters create artificially high click-through rates, effectively stealing from the advertisers who pay on a per-click basis.
I did not worry about this trend until a few months ago when we placed a pricey search campaign with a small, secondary search engine player. After only one week, we recorded thousands of clicks with almost no conversions - a suspicious result given a relatively high conversion from our other search engine marketing activities. More disturbing was that this was an established search vendor who performed well in the past for the advertiser.
Today, it's easier for publishers to make money in online advertising, given its current upswing, and especially in the search engine space where advertisers will pay $5 to $10 (or more) per click. Unscrupulous publishers who sign on with a search engine or an advertising network know they will be compensated for clicks they can generate to satiate the aggressive marketplace at least until they get caught (or move on). This high-demand, fluid marketplace requires greater scrutiny around the issue of click fraud.
What to do? First, a questionable campaign requires a call to the vendor to share your concerns. Request a detailed analysis of the clicks from the campaign. In our case, the search engine expressed more skepticism than willingness to investigate. In the end we did negotiate, and receive, additional inventory at no charge. But a "make good" does not reassure us for the next campaign.
Search marketers must go further than conducting "after the fact" cleanup. I suggest these four steps:
1. Search advertisers need to take responsibility for click fraud. It's too easy to say that click fraud is an issue for the search engines to address. With search demand outstripping supply there is a huge proliferation of new companies pitching for a slice of the search marketing pie. Not all of them will be as diligent as the established search engines such as Google and Overture. And while I believe that these companies have taken steps to monitor and investigate click fraud, it's not enough to assume that their staff and software will be on top of every campaign. Consider, for example, how many times you have felt that these search engines are stretched too thin to service this high-demand industry?
2. Search advertisers (and their agencies) must put monitoring in place. Today tools are out there which will report duplicate clicks from single IP addresses or domains. These tools can be set up to alert you of multiple clicking within a short period of time - a tip-off for potential click fraud. Who'sClickingWho? is one established pay-per-click auditing service offering this capability.
3. Take out an insurance policy. Third Party Adserving companies have an opportunity here. As many search engine marketers use Adserving tracking systems and optimization tools, it would be a natural extension to offer IP address reporting. While the Adservers claim that these reports are quite data intensive to generate and house, I suggest that many advertisers and agencies (including ours) would pay extra for this reporting.
4. The industry should introduce a formal auditing and certification program. Like the Good Housekeeping "Seal of Approval" this certification would be granted to search engines that submit to regular auditing of their campaigns. This is especially crucial for small search engines that want to attract larger advertisers as well as big-name search engines that want to foster trust in their contextual advertising networks comprised of hundreds of publishers. A certification program would go beyond search engines - such a program would also be useful for networks and sites that offer pay-per-click deals to their advertisers.
Setting these safeguards in place will serve to reassure existing search advertisers as well as new, more risk-adverse marketers who are still standing on the sidelines. Just as crucial, these safeguards will help drive the click fraudsters out of town and reassure those of us who champion the search engine cause.
Chris Bowler is vice president, media director, and search practice lead at Agency.com
by Chris Bowler, Wednesday, Mar 23, 2005 7:00 AM EST
http://publications.mediapost.com/index.cfm?fuseaction=Articles.san&s=28417&Nid=12684&p=295787
Posted by Hans A. Koch at 07:00 AM | Comments (0)
March 16, 2005
Click Fraud - The Fly In The Ointment For PPC Ads
Advertising the presence of your Web site via the search engines, better known as Pay-per-Click (PPC) advertising, is becoming one of the most effective and direct ways for businesses to find customers on the Web.
The nature of the services run by providers such as Overture, Google and Espotting means that advertisers can track closely where their budget is being spent, how many clicks they are receiving and therefore how effective their campaigns are. Yet, there is a potential fly in the ointment for PPC advertisers which relatively few are actively aware of, and even fewer in a position to prevent - the problem of click fraud.
Click fraud is the inevitable by-product of PPC advertising. If a business is running a campaign with Overture, Google or any of the other service providers to promote and sell products from its Web site, each keyword included in its campaign has a value attached to it which determines how much the advertiser pays when it is clicked on.
While PPC offers a great deal of measurement and control for the advertisers, what it cannot determine is the motive of the people doing the clicking. Most clicks are from genuine customers or people seeking information for good and proper reasons, but when a surfer clicks on an ad with the sole intention of maliciously spending the advertisers budget, then we're into the realms of click fraud.
The difficulty for any PPC advertiser is in detecting the risk of click fraud to their own PPC campaigns in the first place and what to do as a result. Many people simply assume that they're not going to be affected, yet research indicates that as much of 10 per cent of the hits received by any PPC campaign could be fraudulent - in many cases this could be a lot higher.
At particular risk are campaigns with a large number of generic key terms as they are easy targets for the fraudsters. Making key words and terms as specific to the business as possible can help to stifle instances of click fraud to negligible levels, while at the same time improving click through and conversion rates. To a certain extent this is as a result of badly designed and executed PPC campaigns and businesses need to make sure they bear this in mind when looking for external help to run a PPC campaign.
The service providers are certainly aware of the issue, and all provide information to advertisers to explain how they work to keep the issue under control and protect their customers from click fraud. In general terms, the service providers rely on technology to detect and halt instances of click fraud, and describe 'systems' they have put in place.
It would be impossible for them to effectively police every one of their millions of accounts with human intervention, so to a large degree they are forced to rely on techniques to spot patterns of misuse, and then block them. They also generally offer compensation schemes which are designed to ensure that their advertisers don't end up paying for clicks that came about as a result of fraud. Yet these research figures show that far from preventing click fraud, there is huge potential for episodes of click fraud to slip through the net altogether.
Despite the best efforts of the service providers, there is still clearly a risk. There are products available which claim to help stop click fraud - searching the Web under 'click fraud' will reveal any number of solutions which claim to either monitor or prevent click fraud. Some of these are very useful and can help you to spot trends which can indicate fraud is taking place, but in general, it's a good idea to check a number of indicators.
Look for patterns in PPC log data. If you see clicks from the same IP address using the same keyword in quick succession then you can be pretty sure they are as a result of click fraud. You can use this information to report to the service provider and secure a refund. Another key point is to make sure you report any suspicions.
Spread the risk: using the daily budgeting features of Google and Overture to spread your appearances and budget throughout the day and can help prevent a concerted attack on your budget over a short space of time. You should also look at conversion rates. If you are receiving a large number of hits and very low conversion on your site then that could be an indicator that click fraud is a problem. On the other hand, it could also show that your site is very poor at selling but it's still worth monitoring.
Web site traffic analysis software can help you see what visitors are doing once they arrive at your site. Again, if this indicates that there are a large number of visitors arriving at the landing page/home page, not going anywhere else and then leaving the site very quickly, this is another good indicator of click fraud. Combining this with some of the other clues can help complete the picture.
Ultimately, every advertiser does have a role to play in protecting themselves against click fraud, even though many would argue that the service providers have the responsibility.
Daniel Jupp
Founder and Managing Director
Top Position
16.03.05
http://www.biosmagazine.co.uk/op.php?id=233
Posted by Hans A. Koch at 04:28 PM | Comments (0)
March 14, 2005
PPC ClickFraud: It's A Bigger Problem Then You Think
Pay per click search engine advertising is one of the most popular ways to promote a website.

Don't get caught in the trap...
With Overture and Google leading the pack, the industry as a whole has grown immensely in the past few years. According to a report by PriceWaterHouseCoopers, they estimate that Internet Advertising brought in more than $9 billion in 2004 alone.
With PPC advertising you choose "keywords/phrases," then bid how much you'd like to pay for each click. When a searcher goes to a search engine and types in one of your keyphrases, your short text ad appears, and if they click on it your account is then charged. In a "perfect world" this is the way it would work, but thanks to unscrupulous people, there's a dirty little secret known as "click fraud."
Click fraud is simply the act of clicking on ads for the direct purpose of costing the advertiser money. It's similar to paying out cash for false leads. According to InternetWeek.com, 60% of those who responded to a survey conducted by the "Search Engine Professional Organization" had stated that fraud is a problem when it comes to PPC advertising.
So where does click fraud come from? Well, there are actually a few different sources:
1) AdSense Users: Google Adsense has a program called "Adsense" that pays website owners to run their Adwords ads and compensates them per click. Google does monitor this and it's against their terms of service to click on any of the ads on your own site. If they find a publishers doing this, they will lose their accounts, but some may still be clicking under the radar.
2) Your Competitors: Your competitors could be clicking on your ads over a period of several days in order to deplete your ad budget.
3) Software: There are those who use automated clicking tools, such as robot programs, to click on PPC listings.
In some Asian countries, people are often paid to click on PPC ads for hours. Many don't know why they do it, and don't care, only that they'll be well rewarded for their efforts. If you do a search on any search engine you'll see plenty of sites looking to hire people for just this purpose. For more on this see...http://tinyurl.com/2ka5g
Most PPC networks have measures in place to protect you against click fraud. Overture tracks more than 50 data points, including IP addresses, browser info, users' session info and what they call "pattern recognition." They have a "proprietary system" in place for detecting fraud and a specialized team that monitors things and works with the advertisers to stop it.
Google offers suggestions to avoid click thru fraud, such as "using negative keywords" to keep your ads from showing up for products and services that are unrelated. They also suggest adding tracking url's to your links so you can track the traffic coming from Google. An easy way to do this is to add a ? to your links along with the identifier. For example, a tracking link to identify Google would look like this:
http://www.yourdomain.com/?referer-google
If you go through your log files, you'll be able to see your Google traffic at a glance.
If you suspect fraud, Google asks that you contact them right away, as they have a team of researchers that will investigate. They also take action to block future impressions from anyone they identify as committing click fraud. Like Overture, they also have "proprietary technology" that distinguishes between normal clicks and invalid ones. Google never bills you for any "bad clicks" that are caught by their system.
So what's an honest website owner to do? You need to be alert to any "suspicious activity" by researching your server logs or stats. If you're experiencing a lot of clicks and no sales you'll also want to take a closer look. You need to watch for any spikes in traffic, usually on one keyword or phrase and coming from only one PPC source. You need to measure and track all of your PPC accounts closely.
If this sounds like too much work, you may want to look at an outside service to take care of it for you. A variety of new services have opened recently to help combat the click fraud problem.
1) Keyword Max: http://www.KeyWordMax.com
Offers up a service called "Click Auditor," which monitors the activity on your PPC accounts and alerts you to any suspicious activity. You can request a free demo at the site.
2) Click Detective: http://ClickDetective.net
A website monitoring service that uses sophisticated tracking mechanisms to determine whether "visitor behavior" is normal or not. Offering a 15 day free trial. Easy to use, you just copy and paste a snippet of code on your page and add a campaign ID by logging into your account.
3) Click Assurance: http://ClickAssurance.com
An Internet Security Firm that specializes in click fraud. They will audit your PPC accounts and go after any refunds you are due because of fraud.
4) Who's Clicking Who: http://WhosClickingWho.com
An independent auditing service that tracks individual users for fraud. Can also detect abuse coming from proxy servers. A one month subscription is $79.00, which includes free installation and up to 50,000 transactions per month.
5) ClickLab: http://ClickLab.com/products/click-fraud
This service isolates bad clicks with a scorecard based detection system. Pricing starts at $50.00 per month and is based on the number of sites you need to track and their page views.
ClickLab also has a nice white paper you should download while visiting: "How to Defend Your Website Against Click Fraud."
Click fraud isn't going away anytime soon. If anything, it will probably get worse before it get's any better. It's up to you as a vigilant website owner to do what you can to keep your PPC advertising costs down. You can't stop it, but with the right tracking in place, it can be managed and controlled, and hopefully kept to a minimum.
View All Articles by Merle
About the Author:
Merle of WebSiteTrafficPlan.com offers a F-r-e-e ebook and an e-course that will teach you how to promote and market your website.
Merle | Contributing Writer | 2005-03-14
Posted by Hans A. Koch at 06:36 PM | Comments (0)
Killing click-fraud (and the competition) with one stone
There's growing angst over click fraud -- how it will impact advertisers and the big cost-per-click networks, especially Google.
Good coverage is at the Got Ads? blog ("Google is very susceptible to the click fraud meme") and SiliconValleyWatcher ("But the competitive battle [between Google and Yahoo] could be tempered by click-fraud, a growing problem that threatens both companies")
I think the worry is misplaced -- at least as far as the top operators are concerned. There's a straightforward solution to click fraud that falls somewhere between ridiculously simple and diabolically clever. Namely:
Offer a money-back-guarantee, no-questions-asked, on every click delivered. "Pay for only the clicks you like," Google could say.
Each click would get a unique ID, and any advertiser could get a refund on any set of clicks just for asking. There's already evidence many such refunds are happening, but via a case-by-case appeal process which requires logs or other evidence to be presented. This just needs to become routine, automatic, and expected.
So what's to stop an advertiser from refusing to pay for all clicks?
The catch is, in response to your requests for refunds, Google will "down-weight" (or curtail altogether) your ad placements in exactly those "places" which generated unwanted clicks. If you choose to pay for no clicks, your ad soon stops running everywhere. It's in your interest to pay for the clicks that were truly valuable, so your ads continue to run in exactly the right and honest "places".
(The definition of "place" here is intentionally vague and fluid: it might be particular websites, IP ranges, browser behavioral profiles, whatever.)
At the far extreme, this becomes Cost-Per-Action (CPA) or commission-like advertising, but it'd be up to every advertiser how far along this continuum they want to move. Do they want to pay only for clicks that actually convert? They can, but they may then have to bid a lot higher for their ads to still get scheduled in random new places, if they're rejecting most of the clicks they get. Other advertisers may be happy with a spray-and-pray approach, only asking for refunds on the clicks that generate the most shallow or suspicious prospect web visits.
One unified system can accomodate many preferences -- it just needs to send everyone whatever kind of clicks they're most comfortable paying for, and drop the rest as chaff.
Once this guarantee and feedback mechanism is in place, click fraud -- to either impoverish a competitor or enrich a dishonest content site -- will become much harder, maybe even impossible, to pull off. Any flow of clicks that doesn't deliver value to advertisers will just be written off.
Google is uniquely positioned to implement and benefit from such a policy. They already rank AdWords ads not by raw bid, but by actual profitability over time. They already reserve for themself overwhelming placement discretion, and keep raw performance, price, and payout rates to themselves. All they ask of advertisers is, "are you getting sufficient value for value paid?" -- and that'd be the core proposition at the heart of a pay-per-click-you-like system, too. (Pay no attention to the half-million computers behind the curtain.)
The patterns of unpaid-for clicks would become just another massive and valuable data stream for Google to mine, along with web crawls, query logs, toolbar data, per-browser/per-IP address web-trail info, and whatever other tricks they have up their sleeves. Their core competence is discovering patterns that reveal implied value in giant dynamic datasets, and there's market power in having the biggest dataset.
So the day Google adopts this kind of policy, click fraud ceases being a major problem for them and starts to be a giant club they can use to beat off their smaller competitors. Who else will have as large and detailed a map of which clicks are wanted? And once you've been with Google for a while, and fed it months of data about the clicks you like and don't, switching to any other advertiser would involve a big cost and efficiency hit while the patterns are relearned.
Mmm, economies of scale and customer lock-in. Call it Pay Per Wanted Click (PPWC)/Cost Per Wanted Click (CPWC) advertising. And if Google doesn't eventually do this, someone else looking to leapfrog them will.
March 14, 2005
http://gojomo.blogspot.com/2005/03/killing-click-fraud-and-competition.html
Posted by Hans A. Koch at 04:20 PM | Comments (0)
March 10, 2005
Click Fraud In the Spotlight
With click fraud getting increasing attention in the mainstream media, search engines are under pressure to address the issue more proactively and publicly, industry experts told ClickZ News.
Last week, The New York Times ran a feature article on click fraud in its business section, covering highlights of panel discussion on the topic at Search Engine Strategies. It was one example of growing mainstream attention the topic has received in recent months. Other media outlets that have covered the issue recently include CNN Money, NPR, Newsweek, and BusinessWeek.
Such attention brings the issue out of the interactive marketing industry and before the wider investment community, to which both Yahoo! and Google must answer as public companies.
"The search engines are going to have to do something more, and there's more they can do," said Danny Sullivan, editor of SearchEngineWatch, which is part of the ClickZ Network. "They have preventative measures in place to protect advertisers, but little direct outreach explaining what they can do about it. Maybe they will have to make more of that kind of jump."
Transparency has not been the operative word for the leading engines to date. Most of the public comments made by both Google and Overture have been limited to descriptions of vigilant internal processes, the full details of which they say can't be disclosed. However there are signals that this rigid commitment to secrecy may be loosening.
Yahoo!'s Overture, for one, acknowledges that it needs to take more steps to reach out to the search industry, said Gaude Lydia Paez, manager of communications for Overture Services.
"There's no doubt that when the mainstream media writes about this issue, it raises more questions, which we have to answer more publicly," Paez said. "And I think it's evident that we are making efforts to be more forthcoming when we answer questions in the press about it."
Google declined to answer specific questions for this article.
Advertisers are especially eager for a clearer explanation for the click fraud-related refunds they receive from both Google and Overture. Advertisers also want to know how they can best document cases of click fraud they suspect are occurring.
For example, Tammy Harrison, president of a medical billing company called 2Kmedical, claims to have spent over 200 hours documenting an ongoing case of competitor click fraud</strong>. Although she has since gotten cooperation from both Google and Overture in handling the situation, the current process for identifying suspected instances of click fraud remains very inconvenient for advertisers, she said.
"Remember this: the search engines can't see my data, and I can't see theirs," Harrison said. "This is where the process can be cumbersome, because we're not looking at the same things. I think a better system needs to be created that allows advertisers to know whether they have been charged for a click that is fraudulent."
Leading search engines have discussed the possibility of turning to third party organizations for help in advancing a wider dialogue, confirmed Doug Leeds, Yahoo!'s associate general counsel.
Alchemist Media President Jessie Stricchiola, one of the more outspoken experts on click fraud, said the rest of the search community is eager to take part in a more cooperative discussion.
"Obviously we have a problem the CPC engines can not solve on their own, or they would have done it by now," said Stricchiola. "If we can work together, we can do better addressing this problem as an industry."
But not all players in the search community take the same aggressive stand. The Search Engine Marketing Professional Organization (SEMPO) recently released research that shows 43 percent of SEM agencies surveyed haven't tracked click fraud much, but are worried about it. The research also showed that 30 percent of agencies have tracked the issue, but find it only a "moderate problem." Based upon that research, SEMPO feels there isn't enough momentum to support an industry-wide organization to address the issue, said Greg Jarboe, a SEMPO spokesperson.
"SEMPO recognized that click fraud was a hot issue, which is why we included questions about it in last fall's research," Jarboe said. "People said they were concerned about click fraud, but the next step proposed was to call on the search engines to increase their efforts to detect and stop it. It's not clear, based on recent discussions, whether a next step beyond that has to be taken."
By Rob McGann | March 10, 2005
http://www.clickz.com/news/article.php/3489021
Posted by Hans A. Koch at 06:03 PM | Comments (0)
Click Fraud: Problem and Paranoia
Last week, I served on the "Click Fraud: Problem or Paranoia" panel at the Search Engine Strategies conference in New York. At one point, Jessie Stricchiola, one of my fellow panelists, tried to gauge the extent of the problem by asking the 80 people in attendance to raise their hands if they had ever been victims of "click fraud."
About half of the audience members, most of them small businesses owners, raised their hands.
Then Stricchiola, founder of Alchemist Media, wanted to know how much each had lost. Most reported losses in the $5,000 to $10,000 range. A couple hit $20,000, and the biggest loser of all claimed his company had been fleeced for more than $300,000.
That's when I realized the panel might have more aptly been called "Click Fraud: Problem and Paranoia."
Click fraud -- the skewing of pay-per-click advertising data with illegitimate hits -- can be accomplished in a number of ways, ranging from manually clicking on the same ad link repeatedly to deploying automated bots. Whatever the method, the results are the same: Merchants pay for traffic from someone who has no intention of purchasing anything. Return on investment: bupkis.
It doesn't just affect online merchants. Google, Yahoo and other search engines may also be vulnerable. In the "How We Generate Revenue" section of its latest quarterly report (.pdf), Google stated, "We derive most of our revenues from fees we receive from our advertisers" and acknowledged it has "regularly refunded revenue" to click-fraud victims. (In fact, a full third of audience members reported that they had received refund letters from Google.)
"If fraudulent clicks are not detected," Google went on to say, "the affected advertisers may experience a reduced return on their investment (and) could lead the advertisers to become dissatisfied with our advertising programs, which could lead to loss of advertisers and revenue."
To paraphrase another panelist, Danny Sullivan, editor of SearchEngineWatch.com, if Google is concerned, that's good enough for me.
So who commits click fraud? It could be a scurrilous search engine ad affiliate who clicks for dollars. Auction Experts International, a Google AdSense partner located in Houston, allegedly reaped $50,000 in commissions by hammering away on ad links until Google sued in November. Its principals never showed up in court, and Google won by default. (The site dissolved into the ether.)
Or a company might do it to deplete or expand a rival's pay-per-click budget. Some businesses that pay Google or Yahoo's Overture $20 a click to appear as the No. 1 or 2 ad for a specific keyword estimate that as much as 35 percent of their traffic is fraudulent. Who do they blame? Competitors seeking to bankrupt them.
This is what happened to Tammy Harrison, president of 2K Medical, which markets billing software to doctors. A year ago, she reviewed her log files and noticed a repeated pattern of clicks for keywords that were not normally searched. She realized a majority of the clicks originated from IP addresses located in the same state, and immediately suspected a former employee who had started a rival firm. Total cost to Harrison: $100,000 in sales, time spent determining the extent of the problem, and money wasted on useless ads.
You'd think that victims like Harrison and others who attended the panel discussion might consider confronting the search engines. But many are afraid to complain because of the fear they will get blacklisted by Google, Yahoo and the others, which provide most of their traffic.
"I am scared to death," Harrison said, "but I feel someone needs to speak up so this problem will be resolved. They are the search engines gods and I respect their powers." That said, she emphasized that she is interested in working with the search engines and not against them, and Google and Yahoo have provided refunds for fraudulent clicks, although not for the 200 hours she put in sifting through her logs.
If the Googles of the world are off-limits, perhaps merchants who suspect rivals of juicing up their search ad traffic should consider suing. But this also presents significant obstacles. First, to build a case, they'd need cooperation from the search engines, which are paid whether the clicks are fraudulent or legit. Says Ben Edelman, a panelist who made his name fighting adware companies: "Search engines don't have the incentive but have the data, while the advertisers have the incentive but not the data."
Besides, as Peter D. Raymond, an attorney at the international law firm Reed Smith, said during the panel discussion, "There are three certain things in life: death, taxes and legal fees." It simply might not make sense to spend money pursuing a lawsuit when the outcome is uncertain but the retainer fee isn't.
What can a victim of click fraud do? One solution bandied about at the conference seemed simple enough. Contest the charges on your credit card as fraudulent. If enough merchants did it, they could enlist powerful allies: American Express, Visa and MasterCard, who would likely pressure the other search engines to do something about it.
It sure beats trusting Google to mail you a refund check.
- - -
Adam L. Penenberg is an assistant professor at New York University and the assistant director of the business and economic reporting program in the department of journalism.
By Adam L. Penenberg
02:00 AM Mar. 10, 2005 PT
http://www.wired.com/news/culture/0,1284,66845-2,00.html?tw=wn_story_page_next1
Posted by Hans A. Koch at 02:00 AM | Comments (0)
March 08, 2005
News Analysis: Yahoo challenge to Google Adsense comes as click fraud threatens contextual pay per click advertising
he coming launch by Yahoo of YPN—a competitor to Google Adsense, is a bid to break off a chunk of Google's second largest business.
But the competitive battle could be tempered by click-fraud, a growing problem that threatens both companies.
(See SVW story: Confirmation: Yahoo is testing a Google Adsense competitor.)
At stake are hundreds of millions of dollars of Google’s Adsense revenues from publishing text ads on third party web sites, many of them blogs.
Yahoo has an opportunity to strike a strategic blow against Google. Instead of spending hundreds of millions of dollars marketing Yahoo Search and its other online businesses, Yahoo could choose to offer web site owners a larger share of YPN advertising revenues than Google.
This would win Yahoo prime positions on hundreds of thousands of web sites, and Google would be stuck with far fewer web pages on which to publish ads.
Declining conversion rates because of click-fraud will further exacerbate the competitive battle.
Click-fraud, if left unchecked, will lead to advertisers paying less for each click in response to fewer sales per click.
Advertising networks would then have to increase the number of text ads published to make up for less revenue per click. But there are a limited number of online pages on which to serve ads.
Google has greater exposure to click-fraud than others, because almost all of its revenue comes from advertising vulnerable to this exploit.
This is why Google is keen on publishing text ads on email messages, and when a PC user searches their computer. Google’s Gmail email service and Desktop Search service potentially offer a massive inventory of PC screen pages on which to publish text ads. Yahoo has similar services.
Web pages are open to anyone and it is easy to disguise visitor identities and their clicks. Email and desktop search are specific to an individual person, and an individual PC—making it considerably harder to conceal click-fraud exploits.
The best part: no revenue sharing required.
March 08, 2005
by Tom Foremski for SiliconValleyWatcher
http://www.siliconvalleywatcher.com/mt/archives/2005/03/yahoo_challenge_1.php
Posted by Hans A. Koch at 04:25 PM | Comments (0)
March 04, 2005
Experts: Policing Affiliates Big Challenge for PPC Search Players
Pay-per-click search companies difficulties' adequately policing their affiliate distribution partners is one of the bigger challenges facing the search marketing industry, experts said.
It is on these affiliate sites that 70 percent of click fraud activity takes place, according to Scott Boyenger, president and CEO of ClickDefense, one of a score of companies that has launched in the last 18 months to identify and stop click fraud. Affiliate publishers distribute pay-per-click ads and search players pay them a cut of what advertisers bid.
"About 15 to 20 percent of all click activity is erroneous. Seventy percent of that is not by real people," Boyenger said, referring to bots designed by fraudsters to click on PPC ads. "The advertiser is the loser and the companies offering PPC are winning, and so are the affiliates."
Other companies, like Fathom Online, also identify search players' affiliates as the most widespread source of fraudulent click activity.
"Without a doubt, the majority of click fraud is coming from affiliate sites," said Matt McMahon, EVP at Fathom Online. "But advertisers will vote with their pocketbooks with regard to the offending search engines, and go for the service that offers them the best ROI."
The percentage of click activity that falls under the umbrella of affiliate fraud was a subject of hot debate at a panel discussion on click fraud held at the Search Engine Strategies (SES) conference in New York this week. However, panelists generally agreed the percentage is higher on so-called tier two services like Kanoodle, Enhance Interactive, and FindWhat.com than on Google and Overture.
While all of the paid search players acknowledge that affiliate fraud is a problem, they maintain they have both human and technological defenses that are effective in keeping the problem in check.
"Anyone who says it's not a problem is kidding you, but we think it is a manageable one," said John Slade, senior director of global project management at Overture.
Overture says it employs three lines of defense against click fraud. First, every click must pass through a system of thousands of filters designed to screen out "unqualified" clicks of all kinds. Second, Overture employs a team of expert analysts whose job it is to screen out invalid clicks from genuine click traffic. Finally, Overture actively solicits input from its advertisers, forming what it refers to as a "neighborhood watch" helping to report suspicious activity, Slade said.
"If we see we have a node in our network generating unqualified traffic, we remove it immediately from our network," Slade said.
Though experts at SES said they thought affiliate fraud was a more serious problem at the smaller paid search companies, Enhance Interactive said it couldn't comment on the alleged disparity.
"We only have access to our own information," said Walter Korman, SVP of technology at Marchex, the parent company of Enhance Interactive. "Like the leaders in the space, we have a vigilant system in place to identify and prevent this type of click fraud from taking place. If there are variances between us, there are variances."
However, Korman acknowledged that the bots targeting Enhance's affiliate sites are growing in sophistication, and that filtering affiliate fraud traffic out of its network is a demanding process of identification and removal.
Kanoodle had a similar response to inquiries about the issue. "Kanoodle takes this very seriously and has processes and people dedicated to staying one step ahead of those who would try to game the system," said Lance Podell, Kanoodle's CEO. "It is the responsibility of the sponsored links providers to deliver quality leads to advertisers, which requires a constant and dedicated effort."
Neither FindWhat.com nor Google were available for comment.
Perhaps the thorniest side of the whole click fraud issue for advertisers is that search engines, while maintaining their commitment to protecting advertisers, nonetheless profit from those fraudulent clicks that are not identified.
"All companies offering CPC advertising are susceptible to some level of affiliate fraud," said Rich Kahn, COO of BlowSearch, which has its own pay-per-click offering. "Are we benefiting from it? Yes. Are we also looking to eliminate it? I also have to say yes. It we find it, we squash it immediately. Catching it all is the trick."
By Rob McGann | March 4, 2005
http://www.clickz.com/news/article.php/3487476
Posted by Hans A. Koch at 06:51 PM | Comments (0)
Click Fraud Riles Search Advertisers
NEW YORK—As search-based advertising grows, so too does the concern over fraudulent clicks running up advertisers' bills and shifting the rankings of paid search listings.
Measuring the extent of so-called "click fraud" has proven difficult, but the anecdotal evidence presented this week during a panel discussion at the Search Engine Strategies 2005 Conference & Expo here left little doubt that advertisers are worried about losing thousands, if not hundreds of thousands, of dollars a year to fake clicks.
Jessie Stricchiola, president of Alchemist Media Inc., a search-engine optimization company that also offers click-fraud auditing services, described a common scenario for pay-per-click advertisers. She read through an e-mail sent from Google Inc. to an advertiser, which explained that the search company was refunding the advertiser's account for fraudulent clicks.
While some advertisers welcome the refunds, others become skeptical when they receive such notices, Stricchiola said. They wonder exactly how Google determined the amount of the refund and why the fraud was not prevented.
"This is often where the [click fraud] paranoia comes from, and it's coming from the facts," Stricchiola said.
Click fraud is putting a spotlight on the practices within the pay-per-click advertising field. In the ad model, advertisers bid on keywords for triggering the listing of sponsored links on search and content pages. They then pay a per-click rate to ad programs such as Google's AdWords and Yahoo Inc.'s Overture Services.
For search engines, the ads are the main way they make money. Google alone relies on advertising for about 98 percent of its revenues.
Panelists laid out four typical types of click fraud. Among the more common is an advertiser attempting to improve its paid-search ranking by purposefully inflating a competitor's clicks to force the competitor out of the auction, said Lori Weiman, director of KeywordMax, a division of Direct Response Technologies Inc., which provides click-fraud auditing services.
"We're not talking about a competitor clicking on an ad out of curiosity but about successive behavior over time to get you to stop bidding on keywords," Weiman said.
Another approach involves publishers clicking links on contextual ads, most commonly those from Google's AdSense program where pay-per-click ads are distributed across content sites. More clicks mean a larger revenue-sharing check for the publisher.
Late last year, Google sued an AdSense participant, accusing ad partner Auctions Expert International LLC of purposefully and fraudulently inflating clicks.
Click fraud also could be used as a tool of revenge and for blackmail, panelists said.
In all of the approaches, fraudsters can use a combination of automated software robots, called clickbots, to initiate clicks and people who physically hit clicks.
While Google and Overture do proactively inform advertisers of the click fraud they detect, the majority of the burden for finding and proving click fraud has fallen to advertisers, panelists said.
"Search engines are profiting and have not published rules that speak to an investigation or give those harmed the information to get to the bottom of problem," said Ben Edelman, an Internet privacy research and Harvard University student.
Advertisers can analyze click patterns, visitor logs and other information, but Edelman said the search engines themselves should be able to access more detailed information that could help advertisers track down click fraud and even prove it in court.
So far, click fraud has yet to be tested in court, but panelists and attendees largely agreed that they expect cases to emerge both against alleged fraudsters and possibly against the search engines.
"While we know this is happening, there are no reported cases on this yet," said Peter Raymond, a partner at law firm Reed Smith LLP, in New York. "Obviously there's a real problem in gathering this proof to bring this kind of case."
By Matt Hicks
March 4, 2005
http://www.eweek.com/article2/0,1759,1772485,00.asp
Posted by Hans A. Koch at 06:16 PM | Comments (0)
Search Execs Blame Affiliates, Point to 2nd-Tier Engines for Click Fraud
A canvassing of search players indicated to ClickZ that the brunt of click fraud comes from affiliate programs.
A ClickDefense executive pegged the proportion at 70 percent of bad clicks. CEO Scott Boyenger said that 15 to 20 percent of all clicks are fraudulent. "The advertiser is the loser and the companies offering PPC are winning, and so are the affiliates." Fathom Online's Matt McMahon agreed that the offending parties were generally affiliates, but said that the problem would likely work itself out as advertisers left programs that had poor returns due to fraud." Panelists at the recent Search Engine Strategies conference tended to agree that second- and third-tier search engines - those other than Google or Overture - tended to have higher rates of click fraud.
4 Mar 2005
Posted by Hans A. Koch at 05:52 PM | Comments (0)
Click fraud roils search advertisers
NEW YORK--Tammy Harrison, president of a medical billing software company, says she's a victim of click fraud and needs support.
Harrison had detected a rival company repeatedly clicking on her sponsored listings in Google and Yahoo search results--a tactic meant to deflate her ad budget and boost the competitor's ranking on the page. After sending the corroborating data to the two search engines--which maintain policies against fraud--she managed to get some refunds and the rival bumped from one service.
"I've spent more than 200 hours tracking this person down, and I've lost at least $100,000 in sales. I've gotten my money back--not all, but most," Harrison of 2KMedicalBilling.com said during a panel on click fraud at the Search Engine Strategies conference here.
Another audience member chimed in that his company had lost nearly $300,000 to fraudulent clicks. "This fraud is part of doing business, because if you start suing these search engines, they'll cut off your traffic," he complained.
"Maybe we should start Advertisers Anonymous," joked Jeffrey Rohrs, president of Optiem and host of the panel.
Click fraud is a reality of the pay-for-performance search industry, an estimated $4 billion to $5 billion market this year. Search has turned online advertising into a cash cow for businesses such as Google and Yahoo because of its efficiency at bringing customers and products together at the point of interest. But where there's profit, there's often pilfering.
Fraudsters take advantage of the fact that marketers must pay a fee to the search engine with each click of a sponsored link. For example, it costs an advertiser an estimated $8 per click to appear in search resutls for the term "medical billing software." In some cases, those fees are shared with third-party Web publishers that play host to the ads. And in industries where the ads are more expensive--for example, medical, financial or legal--fake sites will crop up for the sole purpose of collecting a check from Google or another ad network.
It's anyone's guess as to the financial liability it holds over the search engines; Google, Yahoo and others do not break out numbers on the amount of fraud detected and refunded. But anecdotally, people estimate that it could comprise between 5 percent and 20 percent of industry sales.
"It's a billion-dollar problem," said Tom McGovern, president of Snap.com, a relatively new search engine backed by Idealab, founder of commercial search pioneer Overture Services.
For advertisers, click fraud is a particular headache because they must regularly scrutinize their Web traffic and ad campaigns to sniff out thieves, then request refunds from the search engines with which they advertise. The fraud is often perpetrated by online robots, or "bots," programmed to click on advertisers' links, so it can be difficult to detect. The clicks can also come from employees of rivals.
As a result, many companies attending SES are promoting solutions to the problem.
Snap.com, for example, rolled out a new advertising system this week that lets marketers pay for search-related advertising only when people take an action as a result of the promotion, or what's called "cost per action" advertising. The service will let marketers bid for placement in Snap.com's search results but pay only if a customer buys something, in one example.
Other analytics companies, including Clicklab and ClickDefense.com, have introduced specialized tools for monitoring fraud.
Panelists at the click fraud session suggested legal recourse for advertisers and search engines.
Google, for example, filed a lawsuit against an alleged fraudster last fall. The suit charges Auction Experts International with abusing its ad network for monetary benefit. The lawsuit is pending in a Santa Clara, Calif., court.
Jessie Stricchiola, founder of Alchemist Media and click fraud specialist, said that oftentimes, sending a cease-and-desist letter to the party responsible for the fraud will scare people off the practice. For 2KMedical's Harrison, such a letter could get the attention of the second search engine to have it ban her rival as well, panelists said.
"For advertisers, as search advertising gets saturated and more competitive, tactics for click fraud are getting more interesting and aggressive," Stricchiola said .
Published: March 4, 2005, 2:01 PM PST
By Stefanie Olsen
Staff Writer, CNET News.com
http://news.com.com/Click+fraud+roils+search+advertisers/2100-1024_3-5600300.html
Posted by Hans A. Koch at 02:01 AM | Comments (0)
Click fraud roils search advertisers
NEW YORK--Tammy Harrison, president of a medical billing software company, says she's a victim of click fraud and needs support.
Harrison had detected a rival company repeatedly clicking on her sponsored listings in Google and Yahoo search results--a tactic meant to deflate her ad budget and boost the competitor's ranking on the page. After sending the corroborating data to the two search engines--which maintain policies against fraud--she managed to get some refunds and the rival bumped from one service.
"I've spent more than 200 hours tracking this person down, and I've lost at least $100,000 in sales. I've gotten my money back--not all, but most," Harrison of 2KMedicalBilling.com said during a panel on click fraud at the Search Engine Strategies conference here.
Another audience member chimed in that his company had lost nearly $300,000 to fraudulent clicks. "This fraud is part of doing business, because if you start suing these search engines, they'll cut off your traffic," he complained.
"Maybe we should start Advertisers Anonymous," joked Jeffrey Rohrs, president of Optiem and host of the panel.
Click fraud is a reality of the pay-for-performance search industry, an estimated $4 billion to $5 billion market this year. Search has turned online advertising into a cash cow for businesses such as Google and Yahoo because of its efficiency at bringing customers and products together at the point of interest. But where there's profit, there's often pilfering.
Fraudsters take advantage of the fact that marketers must pay a fee to the search engine with each click of a sponsored link. For example, it costs an advertiser an estimated $8 per click to appear in search resutls for the term "medical billing software." In some cases, those fees are shared with third-party Web publishers that play host to the ads. And in industries where the ads are more expensive--for example, medical, financial or legal--fake sites will crop up for the sole purpose of collecting a check from Google or another ad network.
It's anyone's guess as to the financial liability it holds over the search engines; Google, Yahoo and others do not break out numbers on the amount of fraud detected and refunded. But anecdotally, people estimate that it could comprise between 5 percent and 20 percent of industry sales.
"It's a billion-dollar problem," said Tom McGovern, president of Snap.com, a relatively new search engine backed by Idealab, founder of commercial search pioneer Overture Services.
For advertisers, click fraud is a particular headache because they must regularly scrutinize their Web traffic and ad campaigns to sniff out thieves, then request refunds from the search engines with which they advertise. The fraud is often perpetrated by online robots, or "bots," programmed to click on advertisers' links, so it can be difficult to detect. The clicks can also come from employees of rivals.
As a result, many companies attending SES are promoting solutions to the problem.
Snap.com, for example, rolled out a new advertising system this week that lets marketers pay for search-related advertising only when people take an action as a result of the promotion, or what's called "cost per action" advertising. The service will let marketers bid for placement in Snap.com's search results but pay only if a customer buys something, in one example.
Other analytics companies, including Clicklab and ClickDefense.com, have introduced specialized tools for monitoring fraud.
Panelists at the click fraud session suggested legal recourse for advertisers and search engines.
Google, for example, filed a lawsuit against an alleged fraudster last fall. The suit charges Auction Experts International with abusing its ad network for monetary benefit. The lawsuit is pending in a Santa Clara, Calif., court.
Jessie Stricchiola, founder of Alchemist Media and click fraud specialist, said that oftentimes, sending a cease-and-desist letter to the party responsible for the fraud will scare people off the practice. For 2KMedical's Harrison, such a letter could get the attention of the second search engine to have it ban her rival as well, panelists said.
"For advertisers, as search advertising gets saturated and more competitive, tactics for click fraud are getting more interesting and aggressive," Stricchiola said .
Published: March 4, 2005, 2:01 PM PST
By Stefanie Olsen
Staff Writer, CNET News.com
http://news.com.com/2100-1024_3-5600300.html
Posted by Hans A. Koch at 02:01 AM | Comments (0)
March 03, 2005
THE MEDIA BUSINESS: ADVERTISING; Web Marketers Fearful of Fraud In Pay-Per-Click
ABSTRACT - Businesses that pay billions to Google and Overture to steer potential customers to their Web sites are increasingly questioning how much fraud lurks in blossoming pay-per-click model of advertising; there is evidence that at least some scammers are clicking away at ads,
or having programs called hitbots or clickbots do it for them, with knowledge that each click costs advertiser money; some of troublemakers are disgruntled employees; some are companies trying to force competitors' ad spending up; some are even Web page operators who let search engines deliver ads to their sites and then collect cut when people click on those ads; ad buyers worry that 'click fraud' could become rampant, if unchecked--development that could undermine confidence in fastest-growing segment of Internet advertising; executives at Speedy Registration, British company that sells personalized license plates, says its pay-per-click ads were fraudulently hit last year; chart (M)
By NAT IVES (NYT) 919 words
Late Edition - Final , Section C , Page 1 , Column 5
BUSINESS/FINANCIAL DESK | March 3, 2005, Thursday
Please Note: Archive articles do not include photos, charts or graphics. Our photos are available for purchase, please click here for more information.
http://query.nytimes.com/gst/abstract.html?res=F60A11F738590C708CDDAA0894DD404482
Posted by Hans A. Koch at 07:01 PM | Comments (0)
Foiling the Click Fraudsters
I've been promising to address the issue of click fraud, and I'm spurred to
do so by an
article
in today's New York Times on the topic. I don't suppose this entry will be
the final word on the topic (meaning that you can expect more from me on it) but
I'd like to start with the following issues: What is click fraud? Who is harmed
by click fraud? What are the motivations behind click fraud? How easy is it to
commit click fraud? What is the current state of the art in click fraud
prevention and detection? How big a problem is click fraud? Note: I am limiting
this discussion to Google, but it applies equally well to all purveyors of
contextual pay-for-click ads.
1. What is click fraud?
Click fraud is intentionally following a pay-for-click link in order to gain financial benefit while having no real interest in the good or service advertised in the pay-for-click link. Specifically, Google AdSense policies forbid site owners from clicking AdSense ads on their own sites.
2. Who is harmed by click fraud?
The biggest losers are AdWords advertisers. If advertisers pay for fraudulent clicks, then they are overpaying for contextual ads. To the extent that click fraud is widespread, or perceived of as widespread, then it creates a problem for the entire pay-for-click contextual ad industry and content providers on the Internet that depend on this industry for their revenue stream.
3. What motivates click fraud?
I can think of three click-fraud motivations. I've already mentioned that it is a potential way for site owners to increase their revenues. Second, a malicious competitor might attempt to "stick it" to a competitor by engaging in fraudulently clicking the competitor's ads. The final motivation is the same as the motivation of the poor lost souls who write viruses: because it is there and a challenge and naughty.
4. How easy is it to commit click fraud?
Very easy on a small scale and almost impossible to do without detection on a large scale. If a site owner clicks a few times on the ads on their own pages from an IP that is different from the one used to register with AdSense, and deletes cookies from the browser following each pay-for-click click, it is impossible to detect. If the site owner's friends around the world each click an ad on the site once a day, no one will ever be the wiser. (Who knows? These people might end up buying something from the links they click through while they are at it.) There are also (unconfirmed) reports of distributed networks of users in India and China committing this kind click fraud campaign on behalf of clients.
However, any massive click fraud campaign -- say 100 clicks or more on the same ad -- whether automated or manual is certainly statistically detectable.
5. How is click fraud prevented and/or detected?
Click fraud prevention systems typically place their own cookies on a users system when the user clicks through, and then tracks the user, issuing discouraging messages to repeat clickers, and possibly denying access to the destination site. This approach has some drawbacks, however, as it may discourage legitimate prospects, and may be defeated by deleting cookies.
Detection of fraud is a statistical matter, and Google (and the other pay-for-click vendors) are close-mouthed about how they analyse the data (for obvious reasons). This link from SEO Website Marketing should give you an idea of the raw ingredients that go into a statistical hunt for click fraud.
While Google and the other major companies do put great effort into foiling click fraudsters, if you spend any kind of money using AdWords, you need to monitor for click fraud yourself. This link, also from SEO Web Marketing, gives you some idea of the kinds of things you should look for in your Web Server logs and analysis software. An industry has sprung up around helping AdWords customers detect click fraud; you can find many of the players by searching for "click fraud" in Google. One issue: a pay-for-click vendor like Google is the court of last resort if click fraud is alleged, and some advertisers have been less than overwhelmed by their responsiveness to allegations (e.g., they don't happily give refunds). Ultimately, to address this problem, the industry may need a click fraud referree.
6. How big a problem is click fraud?
A good question. One recent study by the Search Engine Marketing Professional Organization (SEMPO), a trade association showed only 6% of all segments of advertisers thought it was "a significant problem we are tracking." (In contrast, 31% either had not heard of it or were not worried.) As reported in the study, marketers felt that search spam is a much bigger problem, and I think this is right. I continue to believe that click fraud is an issue like retail "spoilage": it is a cost of doing business on a small scale (and some small scale perps are converted to customers), and detectable on a big scale.
Posted by Harold Davis at March 3, 2005 12:44 PM
http://www.braintique.com/research/mt-archives/000096.shtml
Posted by Hans A. Koch at 12:44 PM | Comments (0)
Click Fraud Experts: Marketers Need More Info From Search Engines
FOR SMALL SEARCH MARKETERS, CLICK fraud can pose major problems by decreasing conversion rates and ratcheting up ad costs. But, while the challenge is well-known, finding a solution isn't so easy--and, in some instances, might actually be hampered by search engines themselves, said industry experts at a panel discussion Wednesday at the Search Engine Strategies Conference in New York. "People are losing money--money is, in effect, being stolen," said Reed Smith attorney Peter Raymond. Click fraud occurs when a competitor, affiliate, or disgruntled employee creates fake traffic to a site though pay-per-click ads.
The difficulty in stopping click fraud, Raymond said, lies in both proving that it's happened, and linking that proof to a particular person or company that can be sued. One of the biggest barriers for marketers is that they don't have access to that information, said Ben Edelman, a spyware consultant.
Raymond and Edelman were joined on the panel by Adam Penenberg, an author and columnist for Wired; Danny Sullivan, the editor of SearchEngineWatch; Lori Weiman of search engine optimizer KeywordMax; and Jessie Stricchiola of Alchemist Media, another search engine optimization company. Both KeywordMax and Alchemist Media offer click fraud detection service.
Weiman said that one of the major obstacles to a click fraud crackdown is that search engines are reluctant to share the data that documents such fraud. She spoke of one instance in which her client had been billed for traffic that had apparently been generated fraudulently, and the search engine involved hadn't done anything to prevent it. "The search engine clearly wasn't being proactive in detecting fraud," Weiman said. She declined to identify the search engine in question.
Some panelists suggested that search engines have an incentive to turn a blind eye to click fraud. "You'd like to look to the search engines because they have all the data," said Ben Edelman. "But the practical reality means leaving money on the table for them."
"[Search engines] have the ability but not the right incentives, and advertisers have the incentives but not the ability," said Edelman. "In a perfect world, you could trust the search engines to handle this problem."
Some search engine professionals, however, dispute the idea that top-tier search engines are sitting on their hands. "They have just as much incentive to eliminate click fraud as advertisers," said Matt McMahon, executive vice president at Fathom Online. He added that if click fraud gets out of hand, search engines will see their entire business models become devalued. "Direct marketers chase conversions, and fraudulent clicks don't convert," he said.
Chris Churchill, Fathom's founder and CEO, said that search engines were easy targets for people who aren't seeing the return on investment or conversion rates that they're looking for from pay-per-click ads--and that major search engines were working to address it. "It certainly is out there, but there are several top-flight companies out there that are working to solve the problem."
by Shankar Gupta, Thursday, Mar 3, 2005 8:00 AM EST
http://publications.mediapost.com/index.cfm?fuseaction=Articles.showArticleHomePage&art_aid=27817
Posted by Hans A. Koch at 08:00 AM | Comments (0)
March 02, 2005
Other Shoe on Keyword Prices, Clickfraud
Last week there was buzz about how paid search is slowing, this week Fathom Online, which maintains a monthly keyword pricing index, reports that in fact prices dropped for paid search terms, by an average of two percent. Release is here.
I don't know how you all feel out there, but I sense a backlash of sorts building toward paid search. The story has been too rosy, for too long. Journalists and Wall St. analysts are starting to look hard for chinks in the armor.
One of the most interesting, from my point of view, is clickfraud. I've been talking at length to a fellow who is a significant advertiser on Google and other paid search networks, and he is literally exhausted from chasing down all the fraud that is plaguing his ad buys, and really angry with Google for not being responsive to his requests for relief. I'll be writing up that story and posting on it shortly, but if you have any information or insights on clickfraud, send em my way, or post em here.
Update" Charlene Li calls Google a "one trick pony" in this Bweek article, and SES show had a session on clickfraud, covered in this MediaPost piece. Why does every piece covering clickfraud end with a vague handwaving by someone saying "Smart companies are working on this, don't worry about it..."?
by John Battelle at March 2, 2005 05:33 PM
http://battellemedia.com/archives/001296.php
Posted by Hans A. Koch at 05:33 AM | Comments (0)

