Found this link: Word Cloud Analysis of Obama's Inaugural Speech Compared to Bush, Clinton, Reagan, Lincoln's - ReadWriteWeb

Thought it was quite interesting, what it does is compare the respective Inauguration speeches of the above named using 'word clouds' which basically uses different colours and font-szes to highlight the words most used in a speech (bigger the font, the more times it was spoken/repeated):

Obama's Speech



Bush (2005)



Bill Clinton (Second Inauguration Speech)



Ronald Reagan (First Inaugural Speech)



Lincoln's First



Lincoln's Second