Category: Very cool sites

meebo.com
I've been looking for a way to sign on to IM when I'm not at my own machine for the last couple of months, and the different IM providers seem to be hell-bent on making that as hard as possible. They want you to install their client on every machine in the world... (don't believe me? try searching for a web-enabled IM login from the site of one of the services.)

Meebo is the web equivalent of Trillain (but much lighter, of course)and allows you to sign on to multiple services at once.

Finally!