I had a Facebook account from very early on. Some group I was in at the time wanted all of us to join and make a profile. I had those 11 people as "friends" for several years, and basically went to Facebook as often as I went to Myspace, which was rarely.
All of a sudden about 6 months ago, it just exploded. I had one high school classmate find me on Facebook. From that one contact, my little lonely profile suddenly grew mostly with classmates (or rather, people who claimed to have graduated with me that I have no recollection of). What I have learned so far is, there is a good reason I never stayed in touch with these people. I didn't like them then, and they haven't changed. I learned pretty quick that I was probably the only Independent among 100% Republican nut jobs.
Long story short, I have a lot of friends on Facebook now, and hide the comments of about 80% of them.
I have, however, discovered what Facebook is really all about.....GAMING. Now I'm addicted to it, and log into Facebook more than 10 times a day for Farmville and CafeWorld. I certainly don't go there to catch up on the "good ole days of High School".