A nice little alternative to MSN Messenger (Windows Live Messenger).
Available from:
http://www.amsn-project.net/Available for: Linux, Windows, OS X, and FreeBSD. Source also available.
Download: 7.6MB
Installation: 24MB
Took about 10 seconds to install.
No ads, slightly smaller than MSN/WLM (24MB vs. 30MB), multiple account logging, tabbed message window (one window for all conversations), webcam support. I've been using it for a long time with no problems.
The only negative things I have found with it:
Sometimes it won't log in on the first try (or the second), but MSN/WLM does that sometimes too.
No voice support (yet).
Note: This is beta software. Some users may experience issues in running this software.
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