Here’s an interesting Ars Technica piece on the Obama campaign’s technology initiatives. The main one was called “Narwhal” (I’m guessing there are some Redditors on the Obama team, and that it baconed at midnight.)
One telling comparison: the Obama campaign says that at the peak of their operation, they used a good percentage of the capacity at Amazon’s east coast data center, with up to 500 AWS instances (sort-of like a small server) doing the work. The Romney campaign’s Orca system had a single application server hosted at their own site, behind a Comcast business Internet connection, and at one point on election day, Comcast shut them down because they thought there was a denial-of-service attack in progress.
It’s common for winning campaigns to look like, well, winners, and the losing campaigns to look incompetent in hindsight, but this is a pretty clear-cut case of gross incompetence on the part of the Romney campaign.