Open source GIS expert, OSGeo Charter, QGIS PSC member, and author of Learning QGIS.
Interests: open source GIS, open data, spatial databases, GIS-T, data visualization for exploration
Twitter: @underdarkGIS
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Open source GIS expert, OSGeo Charter, QGIS PSC member, and author of Learning QGIS.
Interests: open source GIS, open data, spatial databases, GIS-T, data visualization for exploration
Twitter: @underdarkGIS
stackoverflow.com