Tappx - Tappx is an open app developers community for monetization and cross-promotion.

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.

AdBuddiz - AdBuddiz lets you monetize your Android and iOS apps with premium full screen ads.

Contextly - Contextly provides content recommendation system for publishers.

Orbitera - Orbitera optimizes the sales of software and services on cloud platforms.

Digg - Digg delivers the most interesting and talked-about stories on the Web right now.