I'm usually on AIM most of the time, though I also go on YIM a lot. I used to go on MSN, but now so many people have added me to their list on there that I can't go on without getting attacked with messages, lol. O_O (A nice advantage of having YIM... Invisible mode... and you can still talk to whoever you want when you're on it! Plus you can recieve offline messages. So nice.) The only problem is that not many people use it, so I normally only talk to my friend in England when I'm on. As for AIM, there are only a few people that I actually enjoy talking to on there. I still get bothered with dumb messages sometimes, though. (Like, ''do u wanna pair up wit me??11ONE!!1'', etc.)
And by the way, I edited the poll to include more options!