Some interesting visualization sites

Hi all. Here is an interesting website that gives links to other websites with information visualization: http://www.webdesignerdepot.com/2009/06/50-great-examples-of-data-visualization/

It features links to such site as Delicious and Twitter, sites that most people may already know, along with plenty others. Do note though, that some of the links seem to be broken, but most of them are OK. This should be yet another good reference site for possible future homeworks and projects.