Google's pay-per-action ad pricing beta test is now available to advertisers around the world, the company announced on Thursday.
The AdWords Pay-Per-Action beta,, allows advertisers to set the price they want to pay and they are only charged when someone makes a purchase, signs up for a newsletter or takes some other action as a result of seeing the ad. The ads show up on Google's AdSense publisher network of Web sites.
Pay-per-action is heralded by some as an answer to click fraud with the currently common pay-per-click system in which advertisers complain they end up paying for ads that were not legitimately clicked on by potential customers. Fraudulent clicks can be generated by people paid to click ads over and over or through automated software programs.