Tagxedo

Tagxedo is a program that is much like Wordle, a program that I know many of you use. Tagxedo, according to the site, "turns words -- famous speeches, news articles, slogans and themes, even your love letters -- into a visually stunning word cloud, words individually sized appropriately to highlight the frequencies of occurrence within the body of text." Tagxedo is highly customizable, allowing you to use their gallery of shapes, fonts and palettes, but what's really great is that you can import your own! Check out this one I made using the text of the Gettysburg Address: