icqnd is a GTK-2 GUI for the popular ICQ program Licq. It's written in C++ and uses GTK/GLib. It features a clean, intuitive interface, the GTK-2 look&feel and all the licq IM backend supports (messages, chat, file transfers, history, search, ...)
This program includes a guiinterface and protocol(s) written in Java to be used as a chat program. The primary chat protocol is MSN, but the program is expanable with "plug-ins" that allow other protocols to be added such as Yahoo!, AIM, and the like.