S
WSatellite imagery
WAerial photographic and satellite image interpretationA
WBing Maps Platform
WEarth observation satelliteB
WGoogle Earth
WLandsat programC
WMeteosat
WMultiple satellite imagingD
WNASA Earth Observatory
WNASA WorldWindE
WSatellite crop monitoring
WImagery intelligenceF
WSatellite Sentinel Project
WWindows on Earth