Here is an interesting comparison in the change of land use in Pailin in western Cambodia over the last 20 years.
Landsat Image from 2001 (30m resolution)
Below is an image from 2011, taken by the RapidEye satellite. Nearly all forested areas have been converted to agriculture, except the minefield along the Cambodian-Thai border on the left of the image. Dark patches indicate remaining forest.
RapidEye Satellite Image (5m resolution) from 2011
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Recent announcement from USGS: OrbView-3 satellite images collected around the world between 2003 and 2007 by Orbital Imaging Corporation (now GeoEye) at up to one-meter resolution can now be downloaded at no cost through USGS EarthExplorer. “This is a significant addition to the USGS archive and a valuable resource for the global science community,” said [...]
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Here are the results of a short test of the satellite tracking by the Trimble R6 rover with GLONASS under ...
I initially got pretty excited by this discovery on http://earthexplorer.usgs.gov/ as some of the imagery is 2-4 ft in resolution ...