OpenStreetMap
SOTM10: What I learned Making a real map on real paper for real people and real money
Ipinaskil ni davidearl noong 25 Hulyo 2010 na nasa EnglishMy talk "Making a real map on real paper for real people and real money" from State of the Map 2010 is now available at http://www.frankieandshadow.com/sotm10/
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