What are some alternatives?
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.
Pixfuture - Pixfuture is a self serve advertisement platform for advertisers and publishers.
Digg - Digg delivers the most interesting and talked-about stories on the Web right now.
Nativo - Nativo is an advertising technology platform for brand advertisers and publishers to scale, automate, and measure native ads
StackAdapt - Native advertising demand side platform.
MGID - MGID is a native advertising platform to acquire visitors, monetize websites, build new audiences, and grow traffic.