origin client

It provides a full featured and easy to use Jabber client.

It can set Gmail as the default mailto: client.

A generic LDAPv3 client which does not make any assumptions

Ayttm - Universal Instant Messaging Client.

ICQ-like Jabber client designed to run in any Windows environment.

A secure IM client for XMPP/Jabber.

A multi-client internet messaging application.

FeyTorrents is a p2p client created for fast downloads and easy files managing.

Coccinella is a free and open-source cross-platform chat client.

Quassel IRC is a modern, distributed IRC client based on the Qt4 framework.