Wordle and Tagcrowd are two free applications that create graphic representations of the frequency of different word us in a document or website. Tom Barrett has developed a good online presentation called Sixteen Interesting Ways To Use Wordle In The Classroom.
Thanks to Langwitches for the tip.
My suggestion is to link the kids to
http://www.wordle.net/create
Several times I have been to the wordle homepage and there have been inappropriate words displayed in someone else’s public wordle.
Adding that one extra /create will send them to a page they can start working on immediately.