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This map bundles zip codes by proximity best-fit into spatial approximations of craigslist.org city site coverage. A look-up table linking craigslist zones to Census 2010 zip code tabulation areas is provided at http://uxblog.idvsolutions.com/2011/12/craigszips.html
Tools
- SQL Server 2008 spatial
- Adobe Fireworks
Data
- U.S. Census 2010 zip code tabulation areas
- Craigslist.org for city list
- Initial craigslist zone and methodology reference: http://uxblog.idvsolutions.com/2011/07/chalkboard-maps-united-states-of.html
Is it time for a global licensing framework for geospatial data? The GSDI Legal and Economic Working group thinks so and offered a presentation and a way forward at the GSDI 13 conference held in Quebec City in May. The effort aims to harmonize existing licensing without changing fundamental access policies and funding models and be compatible with the diferences in national legal systems. That's a tall order, but an important one as the world moves toward geodata sharing. Geoff Zeiss reports.