There are a lot of banner CPM Ads Network for small publishers out there, the issue is which of them are really good and worth trying out? many bloggers have listed someone of the those Ad networks which you normally find on many of the blogs but is just sad that majority of them are only promoting their affiliate links with those Ad Networks. that being said, am not saying most of the listed ad networks are bad but the bloggers are mostly listing some of them because of gain they get from them.