I found a site called Qassia. This site has an interesting business model. Here is their description from their site, "Qassia is a site to which you can add your websites. You can also add your knowledge, in the form of tidbits of information called "intel". The more intel you add, the better your sites will rank, the more backlinks you get, and the more money you make. Qassia is 100 percent free, and does not require reciprocal links. You can get unlimited quality backlinks to your websites from Qassia."

No reciprocal links, lots of backlinks, Adsense money... sounds good to me.

I don't know for sure whether it works, but because it doesn't cost anything to sign up, I'm going to give it a try. If you want to sign up, please sign up using the link above. Not only do I get a bit in referral fees, but they are in private beta testing, so the only way to sign up is through another user. I'm all about testing new ways of driving traffic to my site and making more money!