I've been mostly offline the last couple days due to a business trip -- leaving early the morning after the election. I may write a bit about the election itself in a few days, but since I've spent the last couple days deeply immersed in ways of visualizing data, these two versions of the election map struck me as really interesting in showing what went on Tuesday.
This first image shows the size of the winning candidate's margin for each county. (click for a larger view) [source]
This second image shows the direction of change in the vote of each county as compared to 2008.
UPDATE: Okay, one more image because with all the discussion of re-alignment and emerging majorities I couldn't help putting one together: