Parachat
http://drupal.org/project/parachat
IM Control
http://drupal.org/project/imcontrol
MeBeam Chat
http://drupal.org/project/mebeam_chat
Mibbit IRC
http://drupal.org/project/mibbit_irc
Chat Flash (integrating users and design) BoWoB
http://drupal.org/project/bowob
CGI:IRC
http://drupal.org/project/cgiirc
XMPP API
http://drupal.org/project/xmpp
Chatblock
http://drupal.org/project/chatblock
Chat room
http://drupal.org/project/chatroom
phpfreechat
http://drupal.org/project/phpfreechat
