For aerial photography of the 48 contiguous states, search the National Aerial Photography Program catalog, PhotoFinder . In addition to images, DMSP processing software is available. For an informational overview of NOAA products, read this summary of NOAA's geostationary and polar-orbiting satellites. NASA offers more technical information about GOES missions and schedules. Some very useful introductions to the science are offered, and a series of particularly distinctive radar images are showcased.
Emphasis is on Europe.
This very attractive and sophisticated site advertises imagery generated by the French satellite as well as basemap and 3-D products, radar imagery, and various services. An online peer reviewed journal of geography. This is one of the European Space Agency's newsletters. A sampling of what the print magazine offers, covering topics such as remote sensing, GIS, and photogrammetry, and applying it to business and industry. Current geographic review publication provided by the American Geological Society.