This is a Wordle. a great way of creating word clouds from, guess what,
words. Any words! You can just type in any words you want, or you can link
it to your blog and it will create a word cloud for you!
You hold the copyright of the image, so you can print them off, onto
cards, t-shirts etc..
Images of Wordles are licensed
Haven't figured out how to get them the size I want yet though...