I saw this on Twitter and if sponsored links (Twitter or Facebook) interest you, then you might want to check out MyLikes (affiliate link).

I thought it was a little different than the other programs, you can choose campaigns you want to publish and you can even donate your proceed to charity.

I'm not sure howt or if I'll use it, but, I mainly signed up to make sure no one was using my name. I'm still trying to figure out how it works, just thought I'd share.