Quick Topic: free web forum and collaborative document review groupware

"... For any one-topic group discussion, use the Quick Topic free web forum instead of just email! Your messages will be in a private central place, and each of your friends can opt to participate by email or just use the web forum. That's because Quick Topic is a super-easy single-topic web bulletin board that's also fully email-enabled: you can get and post messages via email. Use it on your web site too. Thousands served. ..."