Visual Thesaurus

I just stumbled upon a very cool thesaurus at http://www.visualthesaurus.com/ . Unfortunately, it's not free, but they'll let you play around for a few minutes. I recommend checking it out for a fresh way of visualizing words and their associative meanings. Since our minds are very spatially tuned in terms of learning and memory, I could sense a much richer experience when seeing the words in diagrams. Very cool.