Opengroupware

• Homepage
• Forum
• A FAQ
• Docs
• This plone thing people talk about
• http://www.whitemiceconsulting.com/
• admin guide
• Zidestore
• OGo and Sunbird
• Noodle OGo
• Sope
• Zidelook provides an opengroupware connector for Outlook
• Opengroupware on Debian