Ragin' Cajuns Instant Messenger (RCIM) is an instant messenger service offered by Information Technology to all students, faculty, and staff members at the University.
The Jabber server is hosted on campus so there are no ad pop-ups and everything stays "in-house". Your IM account is based on your CLID, and best of all, it is free!
There are many different chat clients that will work well with the chat server on campus and you can configure them to handle your chat sessions in RCIM. The installation instructions and documentation here are based on the most widely available, easily configurable, free chat client - Pidgin.