Click Fraud Looms As Search-Enging Threat (AP)

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AP - Like thousands of other merchants, Tammy Harrison thought she had struck gold when hordes visited her Web site by clicking on the small Internet ads she purchased from the world's most popular online search engines. It cost Harrison as much as $20 for each click, but the potential new business seemed to justify the expense. Harrison's delight dimmed, though, when she realized the people clicking on her ads weren't really interested in her products.

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Source: Yahoo! News: Technology (http://news.yahoo.com/news?tmpl=index&cid=738)
Technology

[asiaexpat]

One of these days someone will come up with a click exchange program--probably already exits

[eslHQ]

I just started playing around with Google Adsense on a site of mine and I amazed at the relevancy of the ads that appear.

Quote:
Others believe anywhere from 10 percent to 20 percent of the clicks are made under false pretenses

You can also look at that like this:
80-90 percent of users who click the ad are targeted visitors. And then the question becomes, What do you have in place to keep that user there?

just my 2 cents

[aaron]

I saw a forum the other day that would serve up ads based on the topic of the post. Now that's smart.