Senator Who?

Not saying these folks are all going to win, but odds are that out of the set {Mark Begich, Ronnie Musgrove, Kay Hagan, Jim Martin} there are going to be some new Senators come January. Does anyone know anything about these people? I’ve poked around their websites and there’s some interesting stuff there, but it’s a limited source of information — any good profiles? I feel like Al Franken and Mark Warner have been covered to death, and I know Jeanne Shaheen’s record from New Hampshire, but these other characters . . . nothing.