HexChat - HexChat is a fork of XChat with bug fixes and new features.
Worlize - Worlize is the platform that allows users to communicate with each other in a fun way and play games that are created by the users on this platform.
irssi - Irssi is a terminal based IRC client for UNIX systems.
JabbR - A chat application built with ASP.NET and SignalR.
Adium - Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Chattp - Chattp is the software that simply converts your page into chat by augmenting the browser Windows.