I know that is where I intend to be rather than watching MSM. In some of the past races, Daily Kos has done an exceptional job. This time over the weekend, a great diary was written by someone who has had insightful diaries on the polls all year. For each time when polls close, he has three categories - what would be "good", The critical race to watch, and "turn off the tv now."
http://www.dailykos.com/storyonly/2010/11/1/915635/-Bellwethers-2010:-The-Senate-and-Gubernatorial-RacesThey have had turnout diaries today. (They were actually very good when monitoring the Scott Brown voting in January. That would be where I would go. (Not to mention, if you opt to watch a movie, read a book etc - you can peak in whenever and the ends of the threads here and and of the diaries there will immediately give you the story.
Here's another good site -
http://www.swingstateproject.com/diary/7917/nov-2-2010-poll-closing-times-key-races(If you just want the list - the Nyt or any major paper and the networks and cable stations will likely have it.