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40 maps that explain the world

Thanks to James van Dyk from Latitude geographics for passing along:

http://www.washingtonpost.com/blogs/worldviews/wp/2013/08/12/40-maps-that-explain-the-world/

He also passed along a video from 1987, which is an overview of GRASS. . . . narrated by the great William Shatner!