SIM-IM (SIM Instant Messenger) is a free software package licensed under the GNU General Public License (GPL). SIM provides an plugins-based instant messenger with support for various protocols. Based on the Qt library it works on X11 (optional with KDE-support), MS Windows and MacOS X. All protocols support richtext-messages, file transfer, typing notification, server-side contact list (with postponed synchronization - you can change contact list in offline mode and after log on all changes will be synchronized with server), new account registration, various searches and HTTP-polling. You can use multiple accounts for each protocol.
* Oscar - ICQ and AIM support
* Jabber
* LiveJournal
* MSN
* Yahoo!