No,
I'm older than most of you (43) and as such, it really doesn't appeal to me in the least. I did open an account once and searched a pile of names and only came across 2 out of scores that I entered. So obviously, my Generation (X) aren't really into facebook, or myspace, or anything else the like of.
If I mention it to any of my contemporaries, they either roll their eyes and ask, "what the fuck do I want to do that for?", or ask, "what the hell is facebook?"
I'm also a little bit more paranoid about my privacy. Part of me thinks it's something evil.