You can create your own Wordle online. Another free service similar to Wordle to try out is TagCrowd. It would be really interesting to compare the tag clouds of different inaugural addresses. Here is an example. The New York Times created tag clouds for all the inaugural addresses going back to President Washington – orientated along a horizontal timeline. You can also access the full text of those speeches on the timeline.
If you import the text of the inaugural address into Microsoft Word, you can use the Auto Summary feature to create different visualizations of the speech. Here are two samples: