I have a Facebook account. Of course I do. Everyone does.
I find it useful at times. Facebook has helped me to reconnect with old friends, learn about social events, find out who recently got married, who's having babies, etc. I log on at least once a day to get an update.
But I'm not a heavy Facebook user. I rarely post. I generally only friend people I either know very well or who have friended me first, so I have less than 150 friends. I put up a photo when my baby was born, then 2-3 more photos since then, and that's been pretty much it for the year. Mainly, I've avoided using Facebook (much) or Twitter (at all) because I know I have a tendency to overuse these things, and I didn't want all my real life friends to think I was a loser who was always on Facebook. Plus I just don't have time in my life for another internet diversion.
Maybe it's because I use it so rarely though that every time I DO post something on Facebook, I feel like such a loser.
For example, on my post where I announced my baby's birth, 15 people "liked" the post and 8 commented. In contrast, someone on my friends list recently posted a picture of a cereal box and got more comments and "likes" than that. WTF? It really makes me feel kind of bad.
Then again, I finally made my birthday public this year and I've never in my life gotten so many people I barely know wishing me happy birthday.