Radical Cartography is a really cool website put together by Bill Rankin, a graduate student at Harvard University. He’s created some very interesting maps that present new ways of looking at transportation, commerce, income distribution and other topics in a variety of cities, including New York.

Additionally, all of the maps, text and images on Radical Cartography are released under the Creative Commons Attribution-Noncommercial-Share-Alike License 3.0, so you are free to use, quote, or manipulate anything you want, as long as you give attribution, do not use the material for commercial purposes, and release any derivative works under the same license.