I suppose it depends greatly on what your business is and what you sell/market. For me, none of the social stuff is worth anything, either for business or privately... But that's just me. Might do wonders for somebody else. But in my opinion, it's just another place for cute teenage girls to con themselves into thinking that people are actually interested in what they have to say... When in reality, it's just a bunch of horny guys staring at them, who couldn't care less what they have to say.