I was never a big fan of Flash but that's probably because Flash creativity was not as prevalent as it is now. The Flickr Tag Browser is an excellent example of good Flash and an even better example of Information Visualization. I should make sure and get this added to the InfoVis Collection that our class created back in Spring'05.
Man, this is addictive ! Oh, BTW, if you are not familiar with Flickr ... where ya been ?