Eh, I see a lot of professional-networking promotion going on on Twitter, and FB has always been geared more towards personal connections, I think this may impa

Eh, I see a lot of professional-networking promotion going on on Twitter, and FB has always been geared more towards personal connections, I think this may impact some of the userbase, but it's not a death knell. Given that it's trivial to sync your Twitter and Facebook statuses anyway, I don't see many users outright switching.