If you âre reading this post, then you can expect a flurry of news covering Googles beta launch of its Pay-Per-Action (PPA) product for AdWords. Yep, after years of hinting, Google is finally ready to let us test their platform on a CPA (cost per action) model. (If this sounds familiar, reports surfaced back in June, that Google was offering a limited test of CPA) The beta test is restricted to AdSense for content in the U.S., will run separate from the regular auction model, and you may not even get a chance to test it for a few weeks, while they roll it out. That being said, this is a significant expansion of the CPC (cost per click) model, with advertisers being given the option of paying when a customer buys a product, signs up for a newsletter, or completes any other actionable task on the advertiser’s web site. On the publishing side, AdSense publishers will be able to opt-in to display PPA ads from Google and even whether they wish to display a single ad, a cluster of ads or match to a specific keyword that is relevant to their page content. Publishers also get to preview the ads, including company name, logo etc, before the ads go live. As the broker between the advertiser and the publisher, Google will take its cut of any incentive offered. For example, if the advertiser offers $2 per sign-up, the publisher may see only $1.50 offered for the same sign-up. Google will pass on to publishers the net-incentive only. Publishers also get a new “text link ad†format (I wonder what Patrick Gavin will have to say about that), which allows them to display JavaScript ads that appear as a single text link. Publishers will be able to search for text link ads that match their chosen text string. Perfect for bloggers looking to monetize their site, but would prefer to add embedded text links, rather than whole blocks of ads.