Well I usually use Trillian because I have a few friends on AIM, a few on Yahoo, a few on MSN, etc and it's easier than having all the separate programs open at once. But yeah, I still use IM. I'd rather drink battery acid than get on that Facebook crap, or as I usually like to call it, Dramabook, as almost everyone I know who says anything about them using it usually ends up saying "I deleted my account because I got sick of all the drama." I guess some people take that shit way too seriously, and since I feel I have no use for it anyway, it's easier to stay off.
But yeah people still use IM, just not as much as the good ol' days. Now if you'll excuse me I need to tell those damn neighbor kids to get off my lawn. =P