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WikiPedia: OpenStreetMap http://derstandard.at/1246542045463/Ja-ich-wuerde-... http://www.alexa.com/siteinfo/OpenStreetMap.org http://osmstats.altogetherlost.com/ http://blog.foursquare.com/2012/02/29/foursquare-i... http://www.linux.com/archive/feature/119493 http://devblog.mapquest.com/2010/08/31/mapquest-di... http://news.nationalgeographic.com/news/2006/10/06... http://www.nytimes.com/2009/11/17/technology/inter... http://www.nytimes.com/2011/03/28/business/28map.h... http://www.technologyreview.com/blog/mimssbits/274...