Google rolled out new referrals beta, that allows you to select products and services from base of AdWords advertisers, other than their own Google Toolbar etc. products. With the referrals beta, you can search for products that match up directly with your site's content. And you can customize your referral units to match the look and feel of your site, making it easier than ever to find a referral ad that fits in seamlessly with your site's design and content.
Google’ll help you find and display the most relevant, best-performing referral ads on your site. Simply provide a few keywords to describe your site and your users' interests, and you'll see ads automatically displayed that perform best for your site. No more constant updating, rotating products, or guesswork.
As opposed to the usual pay-per-click Google ads, these AdSense ads will be pay-per-action, like with other affiliate programs, you’ll be able to make money only when a sale or some other kind of action, like a signup is made from your website’s referral.
You can now sign up to be part of the Beta program.