Here own Msn/Yahoo/AOL all in ONE!

[Hotshot]

This is very good for talking to people even if you in library (I am quite shock that library havnt block this..LOL)

http://www.iloveim.com/

Cheers

[ferris]

Haha, very cool 

k++ for im'ing in school

Here's another one that tends to work: http://www.meebo.com

[Yaloopy]

Also www.communicationtube.net/

[Shockwave]

I use Trillian

[Yaloopy]

These are good where downloads aren't allowed.

[Hotshot]

Trillian ? I have heard about that and it used all messager (all in one)