Hour-by-Hour, District-by-District

Nate Silver at Five Thirty Eight blog (NY Times) has a lengthy piece in which he breaks down the races to watch as results begin to come in on Tuesday night, and what those race might mean to the big picture of how many seats could be changing hands.  Way too complicated to excerpt here, so I'll just point you over there for more info.

The Washington Examiner also has an hour-by-hour examination of what to look for.  You can find that here.