Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
Request for Startup - Share and discover great startup ideas people actually want
Keybase Chat - End-to-end encrypted chat built into Keybase
GoSquared People Analytics - One place to understand your users
Crypho - End-to-end-encrypted messaging and file sharing
Entrepreneur List - A curated library of entrepreneurship knowledge to help entrepreneurs grow a business.