Alvaro's Messenger - aMSN
- An MSN Messenger client for Linux with multi-language support (40+ languages).
CVW - Collaborative Virtual Workspace
- A software environment that provides a "virtual building" where teams can communicate, collaborate, and share information, regardless of their geographic location.
ChatZilla!
- A cross-platform messaging client that combines Internet Relay Chat (IRC) with existing web standards like JavaScript, HTML, and CSS; latest version is 0.9.69.2, January, 2006.
EnergyMech
- A Linux/UNIX compatible IRC bot; also a helpful resource site for EnergyMech (if you ignore a rather juvenile polling item on the first page).
Freenode
- This site provides discussion facilities for the free and open source software communities, for not-for-profit organizations and for related communities and organizations; a service of Peer-Directed Projects Center (PDPC).
IRC Clients for Unix/X
- An annotated list of IRC clients for UNIX (including Linux), includes links to the homepages; last updated March, 2005.
Internet Relay Chat (IRC) Help
- An IRC help site; includes FAQs, primers, guides, downloadable clients & scripts, and server lists.
IrcII Project
- An IRC and ICB client that runs under Linux and UNIX platforms; support for utf8 languages.
Irssi
- A terminal-based IRC client for Linux and UNIX systems.
KMess
- A chat client for the MSN Messenger protocol -- for KDE 3.x.
KVirc - The K-Visual-IRC Client
- A cross-platform, portable Internet Relay Chat client based on the Qt GUI toolkit. Latest stable release is 3.4.0, 2008-03-25.
Konversation
- A user friendly IRC Client for KDE 3.x.
Ntalk - Ncurses Talk
- No current development; latest stable release: 0.6.3, March 2002.
The Zircon X11 IRC Client
- An X Window System interface to Internet Relay Chat (IRC); last release is 1.18, 2002. No active development, but users are still downloading the code. (2006)
Twisted
- An event-driven networking engine written in Python, and supports numerous protocols. It contains a web server, numerous chat clients, chat servers, and mail servers. The latest release is 8.0, 2008-03-26.