1. Astronaut Observations from lunar orbit and their geological significance @ http://adsabs.harvard.edu/abs/1972LPSC....3...85E

2. Astronaut Observations from the Apollo-Soyuz Mission @ http://si-pddr.si.edu/dspace/handle/10088/2667

3. The gateway to Astronaut Photography of the Earth @ http://eol.jsc.nasa.gov/

4. Earth from Space @ http://www.google.com/search?hl=en&rls=RNWG%2CRNWG%3A2004-46%2CRNWG%3Aen&q=Earth+from+Space

5. NASA - Crew Earth Observations @ http://www.nasa.gov/centers/marshall/news/background/facts/ceo.html

6.  NASA/JPL Data Sets, Movies, Pictures @ http://spacelist.org/data.shtml

7.  Atmospheric Physics and Earth Observations @ http://www.sciencemag.org/cgi/content/abstract/225/4658/169

8. Earthlight @ http://www.earthdvd.com/links.htm

9. Apollo Lunar Surface Journals @ http://history.nasa.gov/alsj/frame.html

10. Astronauts and Apollo Missions @ http://www.bibliotecapleyades.net/luna/luna_apollomissions.htm