Deep Cold (Popularity: )
http://www.deepcold.com/ Features images and animations of Soviet and American military spacecraft that were designed, but never flew, such as the Dyna-Soar, ...
Moonpans.co.uk (Popularity: )
http://moonpans.co.uk/ A collection of hi-res assembled panoramic photos from Apollo 11-17. Includes option to buy prints.
ESA Television (Popularity: )
http://television.esa.int/ Features television frequencies, schedule of the European Space Agency's television broadcasts. Includes on-line video archive and tape ordering service.