Selling ad's list of sites...

Hey guys...

I am currently in the process of setting up around my 11th/12th website and I'm looking at selling ad's on a few of them.... I do like the idea of a ppc scheme.... besides google what companys/sites do this?

I heard of traffic ads but are they reliable?

I need some good hard info on companys that can be trusted etc...

Also by the way a c few if the sites im planning on selling them on are - in my sig below... mainly http://www.prxgo.com | http://www.h1d3.com | http://www.sl43.com

Thanks for your help...