Though it gets a little repetitive - a visit to bracketology101, blogging the bracket, and some of the bracket sites should be worthwhile reading for Gopher fans this year. In some ways even more so in the preseason as *conference* RPIs take shape we can pretty much predict what the various B10 finishes will result in seeding wise. Last year the B10 got a huge boost by the big non-conf victories and while expectations are higher we have tons of tourneys to log key victories early in the season.
Rushthecourt.net is a good CBB news/rumor blog.
I forget the sites, but as we gauge our team versus the nation (and improvement from last year) some of the efficiency and sabermetrics-esque sites are always good fodder.