I don't think I've ever worked somewhere where FB isn't banned. o_O

Though given some of the things that come through FB, I wouldn't necessarily think it's appropriate for the office anyway. Just today, I saw a picture of a model in the nude on my feed. I've seen pics of women getting felt up in clubs. Racists memes were reported just last week. I personally think a company has a right to say that FB isn't appropriate to be accessed at work.