I finally joined around Thansgiving when one of my old roommates resorted to calling me at least once a week saying, "Why haven't you joined Facebook yet?!?!" and then hanging up. I have to admit that I like it better than I expected to. I only use it to catch up with old friends, though, and I don't add anyone I don't know in real life.
"Fans of BOL"? I'll have to look for that one!
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You call it ADD. I call it multi-tasking.