News Realease from Greg Yetman:

Beta Release of New Raster Datasets by CIESIN/SEDAC
May 31, 2006

The U.S. Census Grids, 2000 (currently in beta release) provide raster
data sets that include not only population and housing counts, but a
wide range of socioeconomic characteristics. Produced by CIESIN’s
Socioeconomic Data and Applications Center (SEDAC), these gridded data
sets transform irregularly shaped census block and block group
boundaries into a regular surface—a raster grid—for faster and easier
analysis. Data sets are currently available for the year 2000; those for
1990 will be released in the near future.

See: http://beta.sedac.ciesin.columbia.edu/usgrid/

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