I am on way too many social networking sites for my own good:
And to be honest, I always feel like an asshole whenever I fill out the profiles on these sites– I usually just cut and paste from another site. I’m basically just making up whatever is on my mind at the moment, including descriptions of my work experience. If you had my job, you’d know that the focus of my job changes about every three months whether I like it or not and more often than not, I’m a jack of all trades.
The only real benefit I think I’ve gotten from these social networking sites is reconnecting with old friends, which is valuable in and of itself, but I don’t know if it’s worth the subconscious inferiority I feel when I don’t have a lot of friends/connections.