Here is a useful breakdown of each of the democratic Superdelegates, who they are and who they are for.
Right now, 190.5 superdelegate votes go to Hillary Clinton and 148.5 go to Barack Obama. Still not committed, though, are 250, so we will see the true kingmakers who will be meeting in those smoke-filled rooms. Or probably nowadays and with this crowd smoke-free rooms.
Source: The New York Times