For a number of years, there have been people who claim that the Apollo astronauts never really landed on the moon and the whole thing was faked. The Apollo Hoax(1) site written by Dave Cosnette presents this position along with evidentiary photographs. Conversely, Redzero's Moonhoax(2) refutes these claims with analysis and commentary on many of the same photos.See also articles from lunaranomalies.com(3).

1. http://www.ufos-aliens.co.uk/cosmicapollo.html
2. http://www.redzero.demon.co.uk/moonhoax/
3. http://www.lunaranomalies.com/