hey fellow DP members, I had a chance to trial a bunch of ad networks for a bunch of our Owned and Operated sites over the last month and the following networks performed well - Darcher Media - They use AppNexus and OpenX (if your sites get approved) and a few other direct advertisers. CPMs were between 0.10c to 0.50c on the high end depending on the month and site we had running. They tend to do well with news sites. 30% to 60% fill. CPX - low CPM but very high fill. Great as a passback partner. AppNexus and other demand sources. AdKarma - 90% fill low CPM. Great passback partner. Yashi - 70% fill, low CPM. Passback partner. AdMedia - very high CPMs. Appnexus. OpenX. And Google AdX! Best of luck fellow members!