There’s not a lot of open source (or any, actually) systems that facilitate easy creation of multiple adhoc communities. Anyone know of any offhand?
- Ramius CommunityZero
 - LiveJournal – but journal centric
 - OpenACS 4 Groups Design
 - myBrandeis Club Center – built on ACS
 - Berkleemusic.com – not really related, but just wanted to point out an OpenACS site that actually looks good, a rare thing apparently
 - More great stuff from University of Bristol’s Pilot Portal Project:
- Groups Directory Service – Overview
 - Requirements for a Groups Service
 - Requirements for a Groups Directory Service – integrates most of the above