Google is trying to keep it's AdWords customers informed about click-fraud a practice that involves fraudulent clicks on Google's AdSense network aimed at increasing revenues for a site or costing competitors money by clicking on their ads. Google's "Ad Traffic Quality Resource Center" contains content meant to educate advertisers and keep them up to date on fraud detection and fraudulent practices. Google does not pay sites to display their ads, but rather site owners are paid for clicks on the ad and some have resorted to creating software agents that automate these clicks, either on their sites or on ads of competitors, for the reasons mentioned above. Inforworld story here.
