I absolutely love the idea found on Chad Lehman’s website using Wordle with his library students on the first day of school. Students created a word cloud with words of things they can do in the library. Instead of using Wordle though I would use another similar tool called Tagxedo. Tagxedo not only creates a word cloud out of the text you provide but it “turns words — famous speeches, news articles, slogans and themes, even your love letters — into a visually stunning word cloud, words individually sized appropriately to highlight the frequencies of occurrence within the body of text.”
Another great way to use word clouds in the library was found on Tara’s blog. She broke students up into small groups and had them list their favourite book titles or series.
Below is a Tagxedo made out of my blog.