My friend Amanda suggested that I join Facebook several months ago, but I just got around to it yesterday. I think I spent at least two to three hours on there last night alone.
It was kind of cool because I am not very good at long distance friendships and I lose track of people very easily. I was able to find out about a bunch of people I went to high school with (which actually made me feel old - it's been ten years!). Plus I caught up with people I haven't seen since I moved to California five years ago.
Facebook could be very dangerous. It's addicting and time consuming, yet could be so useful when I am bored at work.