Orbit.love - Grow and measure your community across any platform with Orbit, the community experience platform. Try Orbit for free!
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
Spectrum - Browser-based app to visualize the frequencies of an audio file.
GraphJS - Make any website social
Skype for Slack - Move your slack discussions to a group skype call
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.