I was reviewing my bookmarks and deleting the redundant ones. I came across lots of websites I haven't visited in ages. One of them is Wordle. You can get Wordle to produce a "Word Cloud" of a series of words, either words you paste in, or give it a URL and it will do it. You can then go through numerous style options until you find a shape you like, which you can then further customise.
The more often a word appears, the larger it is in the Word Cloud. Very revealing, perhaps!
The picture above is based on my recent blog postings.
http://www.wordle.net/