StackAdapt - Native advertising demand side platform.
Google Ad Manager - Grow revenue wherever your users are with an integrated ad management platform that surfaces insights for smarter business decisions.
MGID - MGID is a native advertising platform to acquire visitors, monetize websites, build new audiences, and grow traffic.
OpenX - Ad technology platform available as a hosted service or as an open source download.
AerServ - AerServ offers monetization solution for mobile publishers.
Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.