Great site for those interested in the art of presenting visual data in a way that is interesting, memorable, and visually appealing. Maintained by David McCandless, an "information designer", this is a site dedicated to the latest and greatest ways to present data. And while it features a steady stream of masterful infographics from all around the internet, my favorite thing about the site is the fascinating bits of random knowledge you can learn from just a few seconds of browsing around.