Twitter Weekly Updates for 2010-02-21

• The five most popular corporate open-source programs http://bit.ly/9H7atw #
• Great visualizations of global data http://show.mappingworlds.com/world/ #
• The Booth Map: Redesigning WMATA's #map http://bit.ly/9m8KaR #
• RT @bingmaps: Video of Blaise Aguera y Arcas from #Microsoft demoing augmented-reality maps http://bit.ly/c4a55C #bingmaps #
• Prof. Strobl: int'l perspective on how thinking spatially is for everyone, not only Geo-nerds! http://bit.ly/a5pPUc (via @GISeducation) #

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