I think FB is retarded for 90% of it's use. My neigbor, a stay at home wife, constantly posts about needing a maid, that she doesn't have any time for anything, yet she posts about 30 meaningless things per day. Perhaps, that's why she has no time. I don't know why you need to be on Facebook with people you regularly interact with. That's kinda of retarded and a waste of time. Facebook for kids, is even more stupid and I just can't understand why parents give in to their kids. Even the best kids eventually get pissed, or experience something that should be kept private or within close circles, yet in the heat of the moment, they make statements or tell stories they often soon regret.
I think Facebook is a great way for people to find old friends. I'm 40, so in highschool, we didn't have cell phones and email. People just sorda went away and lost touch. In the past few months I've been on, I've gotten in touch with some of my very good friends from high school and college. I've even got together with some of them and had a great time rehashing old memories. I may pop on FB about once every 2-3 weeks and poke around for a few minutes but that's about it. I have no more than 20 friends, all of whom I keep up with now.
To have 100's of people as friends seems kinda odd, but for me using it the way I do has been a really good thing.