About - "Online chat (synchronous conferencing) in an internet chat room or instant messaging system."  -  "Online chat can refer to any kind of communication over the Internet, but is primarily meant to refer to direct one-on-one chat or text-based group chatsynchronous conferencing), using tools such as instant messaging computer programs, Internet Relay Chat, talkers and possibly MUDs, MUCKs, MUSHes and MOOes. The expression online chat comes from the word (formally also known as applications—chat which means "informal conversation"." - Online chat - Wikipedia

My Chat/Screen names»


Also See
Chat Applications / Clients:
Chat Add-Ons, for Mozilla Browsers:
* an item in my list of Alpha» high-level topics, a byproduct of My_System. Sort of like having a personal Wikipedia. Each new topic is started from a template or a quick_template kept at docs.google.com. Sometimes this topical document (e.g. Social») morphs (publishes elsewhere) e.g. on googlepages, my_Word_Press_Blog, lilurl, jaiku'd, twitter'd, zoho, etc.
** How do I start a conversation with someone using Facebook Chat?, Flock has built-in Facebook Chat.
1 Screen_name is "In computing, a user is a person who uses a computer or Internet service. A user may have a user account that identifies the user by a username (also user name), screenname (also screen name)" - Wikipedia
2 Online_chat is 'Online chat can refer to any kind of communication over the Internet, but is primarily meant to refer to direct one-on-one chat or text-based group chatsynchronous conferencing), using tools such as instant messengers, Internet Relay Chat, talkers and possibly MUDs. The expression online chat which means "informal conversation' - Wikipedia
3 Jabber is XMPP (Extensible Messaging and Presence Protocol), managed by XMPP_Standards_Foundation. XMPP clients include Jabber, GoogleTalk, among others. Using Jabber client and browser extensions called SamePlaceSuite. Jabber on the Internet: www.jabber.com. Jabber on the HP Intranet jabber.hp.com). 
4 SMing (Simple Messaging), between two (2) individuals or amongst three (3) or more individuals - this is used, for example, for two persons to have a private messaging going on during a verbal conversation with a third person. Not to be confused with Short Message Service (SMS)
5 Using GoogleTalk client, with this bookmarklet, and with the Google Talk gadget, Google Desktop Google Talk plugin, and a suite of browser extensions called SamePlaceSuite. Note: Load this bookmarklet  in a sidebar.