Tagxedo - Tag Clouds with Style

http://www.tagxedo.com/

Tagxedo allows you to create word clouds much like Wordle, or Tagul, but it allows you to customize the design of your word clouds. You can select from a variety of shapes in which to display words or you can design your shape for your word cloud. You can enter text into the word cloud generator manually or simply enter a url from which Tagxedo will generate a word cloud. As with other word cloud generators you also have options for excluding words from your word clouds.

Tagxedo gives you eighteen options for saving your word clouds as png or jpeg files.

The creator, Hardy Leung, really seems interested in getting feedback from teachers about how Tagxedo can be improved for educational use.