Wordle is a quick and easy to use website that creates word clouds from blocks of text or from web page url’s
Although you cannot directly save them, you can do a screen grab, hit print screen on your keyboard and then paste and crop it in word or an image editing program.
For quick screen grabs I really like the small and quick program MWsnap which can be downloaded here for free!
Have a play and see what you can make.. If you make and save some good ones, see if you can upload them to this sites image gallery!