The Washington Post has an interesting article on how Obama won.
The result may have lacked the glamour of a sweep, but last night, with the delegates he picked up in Montana and South Dakota and a flood of superdelegate endorsements, Obama sealed one of the biggest upsets in U.S. political history and became the first Democrat since Jimmy Carter to wrest his party's nomination from the candidate of the party establishment. The surprise was how well his strategy held up -- and how little resistance it met.
"We kept waiting for the Clinton people to send people into the caucus states," marveled Jon Carson, one of Obama's top ground-game strategists.
"It's the big mystery of the campaign," said campaign manager David Plouffe, "because every delegate counts."
It may be a political nerdy article, but you are reading a political blog.