I'm a sucker for tools like this. The NY Times has a cool little state of the union word comparison tool to show visually the frequency and placement within the speech of Bush's carefully(?) chosen words over the years.
In their words:
We've done similar things for competitive reviews and industry speech analysis over the years... only without the speedy flash interface. Anyone know who provided the Flash app for this? Would be an interesting tool to have, but it looks like they did it in-house.