Okay, this is cool. Enter your LiveJournal URL (or any blog URL, or any text) into Wordle
and it'll create a "word cloud". That is, an image of the most commonly used words, where the larger the font, the more often the word is used. The colors, fonts, and orientation are infinitely customizable, too.
I don't know how many entries it goes back, but I'm not surprised that my biggest word is "Violet".