I don't the the answer to your question, but here is a pretty crappy graphic of some gaming networks I have bought traffic r Here are a couple bookmarks I had

I don't the the answer to your question, but here is a pretty crappy graphic of some gaming networks I have bought traffic r Here are a couple bookmarks I had that might work: http://cpmstar.com/ http://www.ad4game.com/ http://www.epicgameads.com/ http://www.adengage.com/ http://www.ad2games.com/ http://www.inviziads.com/ http://www.advertisegame.com/ http://www.game-advertising-online.com/ http://adsense.blogspot.com/2008/10/get-in-game-with-adsense-for-games.html