Ktt2.com (successor to kanyetothe, a huge hip-hop forum) has live messages. However from what I've seen it has the drawback of encouraging lower-content "chat-

Ktt2.com (successor to kanyetothe, a huge hip-hop forum) has live messages. However from what I've seen it has the drawback of encouraging lower-content "chat-like" messages instead of the less spammy forum posts of yore.