GAIM is an open-source clone of America Online's Instant Messenger client, a clone that...
This program allows you to send and receive pop-up messages with Samba.
This client/server instant messaging platform allows companies to host secured IM systems.
ICQMail can be used to forward all ICQ messages to an e-mail address.
This is a cross-platform client for Jabber-compliant servers.
This is an instant message system designed for universal accessibility.
Build your community in one central place with Seesmic Desktop, which integrates both...
X11 / Linux
TiK, a TCL/TK version of AOL Instant Messenger, includes font support, buddy pounce, IM...
This is an ncurses console-based AOL Instant Messenger, Internet Relay Chat, ICQ and Lily...
Console / X11
tkMOO-light is an advanced chat client that is suitable for use with MUDs and, especially,...
KLicq is the K version of Licq. It includes docking into the panel, session management and...
KXicq is the official KDE ICQ client. It has been totally rewritten and has lots of new...
Gabber is a GNOME client for an open source instant messaging system called Jabber.
SaveBuddy is a GAIM plug-in that saves your buddy list text file to...
This is a KDE IM for Yahoo! based on libyahoo. It allows connection through proxies, mail...
This is a Web-based instant messaging solution that is unrestricted by buddy lists.
This is an instant chat program that lets you exchange instant messages with other people...
This is a cross-platform instant messenger client.
123 Web Messenger is a web ( browser ) based instant messaging software with Flash chat...
Pidgin is an easy to use and free chat client used by millions.