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Open Source GIS 101, Part 3: gvSIG

gvSIG (Generalitat Valenciana, Sistema d’Informació Geogràfica)

In 2004, one of Spain’s regional government agencies, seeing the benefits of community-driven support and development, began a migration to free and open source software to suit their operational needs.

With local and […]

Rich Blocks, Poor Blocks

Nice visualization of income and rent across America. Although it should be called Rich Tracts, Poor Tracts (Census Tracts are the geographic unit, not blocks) – but then not many folks are familar with Census Tracts (I get a lot of emails about “Census Tracks”).

Take a look: http://www.richblockspoorblocks.com/

Thanks to Joel […]

21 Maps of Highly Segregated Cities in America

Thanks to Joshua James for passing this along. The visualization here is really powerful!

Their map of Los Angeles was powerful – but there are 20 other cities to see. What’s interesting is that for Los Angeles there are a lot more colors (more ethnicities) than for other cities.

Link to […]