QuickTopic

A free adhoc Group Discussion host.

http://www.quicktopic.com/

No security except obscurity (each thread has a long random ID).

The Boing Boing WebLog generates a QuickTopic thread for each posting, which is kinda neat.

There's a cool Document Review Collaborative Writing feature that takes an HTML or MsWord document and turns every paragraph into a thread. (Paragraph Addressable)

yeah, this is really neat. there's an xml-rpc interface to quicktopic of some sort, which means that further integration would certainly be possible. --EdwardVielmetti