t2i is a Tcl/Tk -based IRC client aiming for a simple but useful client.
teriX is a tcl script for XiRCON irc client, for thouse users who like unix like irc clients (like ircII, BitchX), but need to seet on windows box.
An IRCbot specifically designed and made for TeenLUG (ex linuxteens). It is written in Ruby with a MySQL database for logging and programming the bot on the fly. PHP would then be used to access the log via a web based frontend.
Extendable IRC bot written in PHP
Yet Another IRC Client is an IRC Client software written in C# and provides the visual feel of chat clients.
zBot is a modular IRC-Bot written in Python. It includes a small engine to handle IRC communication and user management. It can easily be extended by plugins that add commands and handle events. Some plugins for basic functionality are included.