Xomba.com makes it more user friendly to not only make some extra income online, but also to help publicize either your own work or other useful/interesting material online, through their version of social bookmarking. Xomba.com uses Google Adsense, so that you are paid through your Adsense account. The process is simplified here.
Disclosure: For some items linked below, this site may receive compensation if you purchase using these links.