I just finished the first version (still beta) of my affiliate network for Clickbank products. http://www.affmarket.com It displays affiliate ads from Clickbank, with realtime stats of impressions and clicks. The ads are completely customizable, and is only a few lines of javascript, or you can use it as Google alternate ads (we have code that you can put directly in the google_alternate_ad_url line) If you sell products through Clickbank, you can also upload your ads and banners to our network (for free). It is still in early beta, but I would love some feedback. If you are using Adsense, this can be a great way to make some extra money by replacing the PSA's.