I looked at cranky ads, and what a rip off. 25% of your revenue to use their plug in and their billing. For 25% you can have a full service company selling the ads on your site. So, I set up a merchant account to charge advertisers directly and was looking for a plug in that will display ads based upon views. For example, you pay $xx for xxxx views and may share the same advertising spot with other advertisers and this change occurs automatically. Who has one? I have found in this particular niche I would do much better selling ads directly to the advertiser than using any network. So, now I am trying to make that happen. I was also going to use zen cart for check out, anyone that wants to offer a better solution for billing advertisers please feel free to share.