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Historical Maps Online (2 tags)
David Rumsey writes about his collection of more than 150,000 historical maps of the Americas and the world, many of which he has made available free to the public in an online map library. At O'Reilly's Where 2.0 Conference David will draw on his personal map collection, as well as his work with geographic information systems, to discuss how information of all kinds has been mapped and will be mapped in the future.