Alamak Internet Chat has more than 60,000 chat users each day from around the world and features private rooms and more commands with an easier faster chatting interface than another other Web Chat available on the Internet.
ICQ: Interpersonal Chat (This Is Great!!) (free downloadable software)
mIRC (Internet Relay Chat)
The Gathering
UDATA Chata - UDATAnet's own chat server
Yahoo Chat