Tagxedo creates word clouds with a difference.
Word clouds can be created by all learners teachers and students for many purposes. I prefer tagxedo as it allows for the clouds to be in the shape and colour i want them to be rather than just random like wordle!
Check out Michael Gorman’s extensive list of 108 ways to use word clouds in the classroom here http://21centuryedtech.wordpress.com/2012/05/21/108-ways-to-use-word-clouds-in-the-classroom-word-clouds-in-education-series-part-2/
or if you prefer the PDF version: