Great way to teach finding evidence from the text. After reading a book together as a class come up with an argument (ex. Julius is the Baby of the World) and have each class member look through the text to find and cite statements that support this argument. Then go through them as a class and talk about which statements supported the argument and which didn't.
If you love Wordle, then you might really love Tagxedo. With Tagxedo you can enter text AND pick a shape for your word cloud. Below, is a Tagxedo I made just from entering the URL for my blog. It picks out key words and I just selected the apple shape. I think this site is just plain fun. It was also a lot faster than Wordle.
Use your blog, a website, or other text to create word clouds that conform to a shape you select or upload yourself. You can save the image and even purchase tees, totes, and more with your creation emblazoned on them! Sorry about the image they chose to put on my pin! It's killing this Sooner fan!