Satellite photographs

Sources of Open Data

 * Corona Atlas of the Middle East (select orthorectified CORONA imagery)
 * The U.S. Geological Survey's Earth Resources Observation and Science (EROS) Center provides a variety of geospatial data products (including aerial and satellite imagery), many not limited to North America. These are summarized, with links to their various dissemination systems, on the EROS Products and Data Available page. Available imagery includes: CORONA, Landsat.

Sources of Licensable/Purchaseable Data

 * foo

Other programs and websites
Other than Google Earth, which has good street-level images of most built-up areas, the sources known to us are:


 * NASA's World Wind (free, mostly comparable in resolution to Google)
 * DigitalGlobe/QuickBird (commercial)

Specific datasets and associated sensor systems

 * CORONA
 * Landsat
 * QuickBird