What is "chat"

Software and protocols

• Internet Relay Chat (IRC)
• AOL Instant Messenger (AIM)
• Chatroulette
• Gadu-Gadu
• Google Talk
• Grunt
• ICQ (OSCAR)
• Jabber (XMPP)
• MUD
• Pichat
• SILC
• Skype
• Teamspeak (TS)
• Wikia
• Windows Live Messenger
• Yahoo! Messenger