An NYT piece examines the content of previous innaugral speeches from 1789 to yesterday, sizing the words according to the frequency of their use. The words highlighted in yellow were used significantly more in this inaugural
address than average.

Unsurpisingly, Dubya's most used word was freedom – not something that the enormous number of Black American's incarcerated in the US, and the inmates in Cuba, were ever likely to experience under his regime.

Also, there's a great Flickr pool of images from DC here.