If you were ever thinking of running Chitika MiniMalls like the one showed in this post, use this referral to signup. (I do get some revenue from your referral). The ads were at an inopportune time for me and tended to produce about twice as much as Adsense in a given day over the small testing period I had setup. I might use them again in the future.
Various different blog posts, sites and programs will help you tweak these ads to get the best results. Please understand that it is legal to run both Chitika Minimalls and Adsense on the same page as long as Chitika is set to be non-contenxtual.
Link to signup for Chitika Minimalls