I had a Facebook account for less than a week before I deleted it. I only signed up to see what all the fuss was about, but after I started receiving friend requests from random high school folks that I never really liked anyway, it was gone. I'm a classic introvert and sometimes I wish I weren't... but oh well. I've got fewer than six really close friends that I stay in touch with regularly, and even some of those I only hear from on a yearly basis. The rest are just acquaintances.