AOL Instant Messenger
by America Online

MSN Messenger
& Windows Live Messenger
by Microsoft

Yahoo! Messenger
by Yahoo!

ICQ
by Mirabilis

Google Talk
by Google Inc.

Trillian
by Cerulean Studios

Skype
by Skype Technologies S.A.

Gaim  (Now Pidgin)
by Gaim

Miranda IM
by Miranda

Paltalk Scene
by Paltalk

digsby
by dotSyntax

Eyeball Chat
by Eyeball Networks

mIRC
by Khaled Mardam-Bey
Chat

iChat AV
by Apple

Qnext

by Qnext Corp

 BROXIS

 Secure Instant Messaging for Companies

Get MECA and integrate your AIM, MSN, Yahoo! and ICQ programs.

Odigo Messenger

by Odigo

IMVU is a new way to hang out and have fun with your friends online! Its a 3D Messenger.

3D Messenger By Google