Google cash tell you in detail about how to make money from Adwords, using affiliate products like Clickbank, Commission Junction, Linkshare etc... There are no fees or qualifications for joining these sites. They provides suitable tool to select the highest selling product. There are some very good tricks and tips, like using misspellings, I use them all the time, it work well.
Google cash worked really well since the introduction in 2003; also they are constantly updating the content to reflect the current market condition. It is fairly easy system to use and you can start earning money immediately using this system.