Population Density Heat Maps for Google Earth

gearthblog.com — Visualizing US Census data just got much more interesting thanks to a collection of maps for each of the 50 states which are overlayed into Google Earth. Maps available include: population density, median ages, and male/female rations at either the county, or even higher, census block data resolution. These maps are awesome! Mar 2, 2006 View in Crawl 4