dusky - 1:05 am on May 26, 2010 (gmt 0)
Going the own hosted ad route is best, an example would be the downloadable Openx solution. Not only cuts out the middle man, but you get to choose exactly what and who can advertise, it may require a bit of time managing, but at least your manage and host it yourself and you don't have to give a 60/40 revenue to another ad network or get labeled as an affiliate. You keep 100% and pass it on as savings to advertisers instead who may be more of them here than that network if it comes to niching. All links are served from your own domain / subdomain and are part of your content, not an affiliate content even if they are just ads.