This Program is similar to Wordle but so much more of a selection. Below is a video to use Tagxedo.
But even better this google doc gives you 100 ways to use it.
Tagxedo 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. Play with it, gry it. You'll love it.
This link is a mini tutorial on how to use Tagxedo to it's fullest. As I said before. Have fun.