Scott Adams (the artist behind Dilbert) very nicely summed up the misgivings I have about the outcome of this election, through humor. You can read it here.
To clarify my position (and none of this is earth-shattering): While I'm not quite so doomsday-ist to suggest that the entire country will collapse (although I'm not saying it's absolutely not a possibility), the amount of hurt and disappointment across the country is going to be immense. And because of the record number of voters, I think that it will be even bigger than the 2000 election as far as dividing the country. As a political scientist (which I hate that I am that, I really do... but alas, an interdisciplinary MA will do that to you!) I am incredibly interested to see how (or not) a new administration can deal with the disappointment and mistrust.