My frame of reference here is CHN's PWR Blog. It looks like the NCAA tournament bubble is down to basically just two spots.
The first spot will go to the winner of tomorrow's ECAC third place game between St. Lawrence and Princeton. Princeton wins the spot in the event of a tie.
The second spot is a three-horse race between Minnesota, Ohio State, and UMass-Lowell. Lowell controls their own destiny by playing BU in the Hockey East championship game. If they win, they get the spot, if they don't, they're out. If Lowell does lose, then it comes down to percentage points between Minnesota and Ohio State, and will depend on how all of the other games go. All of the favorites winning seems to benefit Ohio State.