But who cares about that, when Google will pay $100 once you sign up a publisher on AdSense that makes their own $100.
Google is certainly bumping up it’s referral program. If you have an AdSense account, login and click on the referrals tab, you get code for Google AdWords and FireFox with Google Toolbar referrals.
Google AdWords Referral Ads
FireFox with Google Toolbar