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Posted: June 23rd, 2008, 6:09am CEST by Caitlin
PolicyMap offers over 4,000 different indicators covering demographics, economics, housing and mortgage information, crime and other neighborhood level datasets. There is a free registration option that gets you access to a great deal of the functionality offered on the site. If you need access to current year or 5-year projected data then the site offers [...]
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Posted: April 27th, 2008, 11:50pm CEST by Caitlin
The Federal Reserve has released dynamic maps showing subprime and alt-A mortgage loan information across the United States. While the concept is very interesting, it seems that the Flash application was developed with little understanding of cartographic principals. The chloropleth maps are available at the ZIP Code level but the pop-up statistics only show information [...]
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Posted: April 9th, 2008, 12:48am CEST by Caitlin
Spatial data errors in online mapping and GPS navigation systems can send travelers off on the wrong route sometimes with comical but sadly, sometimes deadly results. Having been burned by trusting online driving directions before, Chris Silver Smith from Search Engine Land reviews the top reasons online mapping sites have bad data. Reasons he lists [...]
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Posted: April 9th, 2008, 12:34am CEST by Caitlin
Paul Smith (developer of EveryBlock), has a broad article entitled “Take Control of Your Maps” on the “A List Apart” site that takes a look at open source online mapping options other than Google Maps. The article is a good introduction to some of the basics of getting started with open source map servers such [...]