Visual Tool for Songwriters

I happened across a wonderful tool on Alice Hancock's Design blog that might be useful to other songwriters. Wordle is an online program that turns your words into pictures which can then be printed or exported as pdf's.  The frequency of a word's usage determines its size in the visual.  Results can be randomized, or you can customize them by selecting fonts, colors, etc.  I decided to experiment with the lyrics to one of my songs, and then used the graphics to create a video.  Wordles could also be used to generate posters, t-shirts, album covers or whatnot.  And they might prove valuable in providing a visual tool to examine your writing style.  Have fun with it and see what you can come up with!