Google just added another service through adsense, their very own payment service called Google CheckOut!. They have included referral commission in adsense, where you can refer individual to use their payment service google checkout.

Here is some information on how you can get money by referring individual to google checkout.

By placing google checkout referral button on your site and some click and register on the service with their credit card information and purchase 10$ worth of items suing google checkout. You get $1 in adsense earning on referral area.

That 10$ purchase is easily compensated because of $10 sign-up promotion of Google checkout if you sign-up on February 16, 2007 to March 31, 2007. It seems few more days to go before getting that 10$ bonus. Check https://checkout.google.com