I ran across an application at http://wordle.net that will allow you to paste in a bunch of text, the URL to a RSS or ATOM feed, or a del.icio.us user name and it will read the text, remove common words, and then create a word cloud. I created one for my blog.

The most surprising part of this word cloud to me is that the largest words don't necessarily match with the tags that I have defined. I think I will have to rethink my tagging system to make sure that content is easy to find.