So we are giving Chitika a try. This is a company that has had a lot of success with their "mini-malls" and is now branching out and geting into more kinds of web advertising. Currently on our main site(s) we run a mix of Google AdSense ads, banners from Travel Ad Network, and now we are throwing some of this Chitika | Premium in to see how it performs. They describe this new program as:
"A smart, personalized targeting ad solution that provides premium content. This ad unit is CPC and is designed to be your highest performing ad unit (eCPM)."

How did this end up working out for you?