Most Comprehensive Web 2.0 List ever:
Most Comprehensive Web 2.0 List – CHAT 2.0
3bubbles – Add chat to your blog. http://www.3bubbles.com/
Ajchat – Create chat rooms. http://www.ajchat.com/
Campfire – Permalinked chat. http://www.campfirenow.com/
Chatsum* – Chat with & leave messages same-site-visitors. http://www.chatsum.com/
Conversate – Create your own chat. http://www.conversate.org/
Gabbly – Get chat on your blog. http://gabbly.com/
PeekoChat – Make every site a ‘place’ (Firefox plug-in). http://peekko.com/chat/
Zohochat – Create your own chat room. http://zohochat.com/