Walkaround - Walkaround is a variant of Wave, based on the Apache Wave code base, that runs on App Engine.
Hive - Seamless project management and collaboration for your team.
Rizzoma - Email and IM are linear contextless communication tools.
Sup! Standup Bot - The complete stand-up and follow-up bot
Slack - A messaging app for teams who see through the Earth!
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.