Much of the current forge was inspired by Roundup

http://roundup.sourceforge.net/index.html

After we told ESR about roundup, he posted some interesting ideas about how to "federate" roundup entities "namespaces" that are ultimately just url-prefixes per project:

http://esr.ibiblio.org/?p=1359

Message based system needed

http://ejohn.org/blog/google-groups-is-dead/

Potential pitfalls for groupware development

http://research.microsoft.com/en-us/um/people/jgrudin/past/papers/cacm94/cacm94.html

AMQP Online References

http://blogs.digitar.com/jjww/2009/01/rabbits-and-warrens/ http://www.igvita.com/2009/10/08/advanced-messaging-routing-with-amqp/