Yahoo! Instant Messenger
AOL Instant Messenger
MSN Messenger
mIRC
ICQ
I was most comfortable using Yahoo Messenger but far more people I talked to regularly used AIM so that's what I used mostly.
I used MSN a fair bit (mainly to talk to fellow EoFFers) but I really didn't like the way the client functioned.
I like Kung-Fu.
I think I used AIM the most but the notification sound drove me scatty. I had more American friends at the time online so I didn't use MSN half as much.
I liked IRC/Sysreset more than the others.
YE RAGIN', AYE?
I used AIM the most for sure. Noit many people in my school used MSN even though it seemed like everyone on here used it.