Google CPA: An Answer to Click Fraud?

Google ran a limited test of the so-called pay-per-action service in July 2006 with a handful of advertisers and affiliated online publishers on whose sites the ads run. This test only involves 75 Google's AdWords advertisers and 75 affiliated U.S. publishers, who allow Google to place ads on their sites relevant to the context on their pages. The feedback was positive enough to warrant a broader trial. On Mar. 20, Google said it would begin a broad new advertising trial for pay-per-action service.