GitHub Polls - Polls for GitHub issues and readme
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Octotree - Github on steroids
BoostHQ - An online community platform for your employees to gain knowledge, share experiences and learn from each other.
Metaverse - Democratized augmented reality platform: AR for everyone!
Lunyr - A decentralized crowdsourced encyclopedia.