KARL is an open source web system for collaboration, organizational intranets, and knowledge management. It is produced by the Open Society Institute (OSI) and used by OSI and others

An easy way to find out when everyone is free for your next meeting or event.

A Simpler Software Project Forge

Basie is a web-based software project forge [like SourceForge, Google Code, trac, etc.] that integrates revision control, issue tracking, mailing lists, wikis, status dashboards, and other tools that developers need to work effectively in teams.

If you are a web developer you need to know

Openfire is a real time collaboration (RTC) server licensed under the Open Source GPL. It uses the only widely adopted open protocol for instant messaging, XMPP (also called Jabber). Openfire is incredibly easy to setup and administer, but offers rock-solid security and performance.

KARL is an open source web system for collaboration, organizational intranets, and knowledge management.

A distributed helpdesk for...everything. What a great idea!