In past weeks I have been friended, added or followed by people / companies on the usual social networking platforms. I don't have any examples from Facebook since they already have all my personal information and can serve up highly targeted adds. I don't know if that's better or worse.
But one would think that as the popularity of these social networking services like Pownce, Twitter and VOX push them into mainstream adoption companies will follow the masses to push their brand and win our hearts and minds. Oh and our pocket books.