Miranda Instant Messenger - A modular open-source multi-protocol instant messenger for Windows that maintains a database of community developed plug-in's that add functionality. Bantu - Offers a web-based solution to instant messaging that lets you talk to people with the AOL, MSN, YAHOO, and ICQ messangers. VSL LanToucher - Instant messaging software solutions for business and home text communications across private networks. Easy Message - Free all in one instant messenger, including support for MSN Messenger, Yahoo Messenger, AOL Messenger, and ICQ Messenger. EMSN Messenger - EMSN is a PHP-Messaging System. MyOMS.net - A web service for creating a messenger client. Included is a web based version of OMS. Winpopup LAN Messenger - A full-featured server-less instant messenger for Local Area Networks. P2P Messenger .NET - A secure instant messaging client, working by peer-to-peer technology. It is fully decentralized and does not require any servers. Supports public-key cryptography. Requires installing .NET-frameworks. BigBlueBall.com - Instant messaging tutorials, reference, news and forums for AIM, MSN, Yahoo, ICQ, Trillian and other products. Gtkmsn - A MSN protocol based client. Includes download section and screenshots. Pidgin - A chat client which supports MSN, Google Talk, Yahoo, AIM, IRC and other networks. Centericq - A text mode menu and window-driven IM interface that supports the ICQ2000, Yahoo!, AIM, MSN, and IRC protocols and has many other useful features. Kopete - Linux based, KDE specific, it is a flexible and extendable multiple protocol instant messenger. The Carrier Project - A fork of the Pidgin IM client. It aims to be more user friendly. Project information, feature list, and download. Digsby - Manages existing IM, email, and social network accounts from one application. qutIM - Cross-platform multi-protocol module-based communication client supporting: ICQ, XMPP/Jabber, IRC and other networks. Network Assistant - A real-time communication utility for the office environment, including channels-based chat, shared whiteboard, message board and instant messaging. Brosix - IM tool which provides features designed for enterprise and business purposes: own instant messaging network, strong encryption. Instantbird - A cross-platform IM client based on Mozilla's XULRunner and the open-source library libpurple used in Pidgin. Supports a large number of protocols. Trillian - A chat client for Windows that allows you to simultaneously connect to Facebook, Google, AIM, ICQ, XMPP, Yahoo!, and Twitter.