Sadly, I haven't found a good roundup yet. Everyone seems to use phpAdsNew or MMM. I'm frankly surprised at the lack of innovation in this area, given the gr

Sadly, I haven't found a good roundup yet. Everyone seems to use phpAdsNew or MMM. I'm frankly surprised at the lack of innovation in this area, given the growth in niche-market websites. Why is there nobody that simply hosts an ad server for you for a monthly fee? They don't even have to handle the payments, just having them act as an independent analytics provider would be plenty. In the age of S3, this is way easy stuff. Come on, someone do this!