Wordle is a toy for generating 'word clouds' from text that you provide. The clouds give greater prominence to words that appear more frequently in the source text.
I thought it might be interesting to see what kind of cloud was created from the Death Valley journal that Rover wrote for me, so I plunked my journal into Wordle to see what would come out. Yes, that silly red dog Rover did use my name quite a few times as he wrote this journal, didn't he? See, it really is fun to play with words!
Image created by http://www.wordle.net