WikiMatrix / Wiki Feature Comparison - Compare them all
FON
wificommunity
openmeetings - Project Hosting on Google Code
Welcome to dimdim
macht auch einen guten Eindruck. sollte ich mal testen...
Simple, Small, Secure - WebHuddle
deutsche Übersetzung furchtbar, aber vielleicht dennoch interessant.
Mindquarry for Collaboration, Teamwork, Productivity | Mindquarry | The Open Source Collaborative Software
Projektmanagement, Team-Zusammenarbeit
Chandler Project - Welcome
Personal Information Manager
Alfresco - Open Source Enterprise Content Management (CMS) including Web Content Management
ThinkFree Online beta
Online Office
CrowdSpirit - Ideavox
Innovator sends ideas. The contributors fine tune them & vote for the best one etc....
PiratePad
Etherpad von der Piratenpartei gehostet, nachdem Code nun Open Source ist.
Top 10 Open-Source Platforms to Build Your Own Social Network | Dzine Blog
Gute Übersicht!
P2P Foundation
We study the impact of Peer to Peer technology and thought on society.
Open Atrium
Open Atrium is a team collaboration tool with a kick of open source hotness.