Adium is a fast and free instant messaging client which supports AIM, ICQ, Jabber, MSN, Yahoo!, Google Talk, Yahoo! Japan, Bonjour, Gadu-Gadu, Novell Groupwise, and Lotus Sametime. Adium supports
Psi is the premiere Instant Messaging application designed for Microsoft Windows, Apple Mac OS X and GNU/Linux. Built upon an open protocol named Jabber, Psi is a fast and lightweight messaging
Openfire (formerly Wildfire) is the award-winning instant messaging server known for its simplicity, elegance, performance and extensibility.
* create your own private jabber server
* runs in the
Spark is an Open Source, cross-platform IM client optimized for businesses and organizations of all sizes. It includes enterprise-class features such as built-in support for group chat, telephony