I'm not exactly sure why I get so much pleasure out of Wordle.net but I could play with it all day. Enter some text or a web address and TA DA! it makes a collage out of the words. You can changes the colors, fonts and layout - even remove common words like "the" and "and." The more times the word shows up in your selected text, the bigger it is in the final product. Here's a few I made by using the url of this blog.