Rizzoma - Email and IM are linear contextless communication tools.
Hive - Seamless project management and collaboration for your team.
Walkaround - Walkaround is a variant of Wave, based on the Apache Wave code base, that runs on App Engine.
Sup! Standup Bot - The complete stand-up and follow-up bot
Collaba - Collaba is an easy-to-install, double-click-to-run, server software that provides integrated services such as: e-mail, calendaring, files & documents, assignments, blogs, multimedia chat, forums, bookmarks, web publishing, wiki, single sign-on, LDAP…
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.