Google has a new program going ... http://www.google.com/referral/
It's an affiliate program in which they pay $20 CPA for anyone you refer to AdSense / AdWords. Unfortunately, it's currently - of course! - in beta, which means it's by invitation only.
Has anyone been one of the privileged few to have received an invitation into this program? Tested it out? How does it work? How do the banners look? What sizes are available?
I would love more information on this program if anyone has anything to share.