Wordle and Tagxedo are online applications for creating word art. They work by counting the words you feed into it. In the resulting art, words that appear most are the largest.
Check out Wordle here.
Tagxedo is a little more advanced, and lets you create shapes (!!). I asked Tagxedo to “read” this blog and create art based on the words we’ve used so far. Here’s what it made for us: