Although I am not on Facebook, I find it very intriguing. I prefer person or phone contact, and really don't want to spend my free time in front of a computer. I have only used Facebook to try to see a picture of someone.
Facebook is fascinating. It is definately changing interaction for people that I know who use it. People have looked up old classmates and gotten back in touch or have made new friends. I have only used it to try to see a picture of someone.
The privacy issue seems to be pretty well covered in Facebook. It was interesting to me that you can remove yourself from Google. I would never have though about it, but the person that I looked at on facebook was actually found through Google.