Official Canon museum for it's camera lines.
Great online archive of photographs, books, and resources. NOTE-CONTAINS SOME MATURE CONTENT(NUDES, etc)
Official Nikon history page with lots of info on the cameras and technology.
The PHSC was formed in October 23, 1974 to advance the knowledge of and interest in the history of photography, particularly of photography in Canada. This web site was established in April 1996 to further our objectives via the rapidly expanding influence of the world wide web.
A great resource about for history of various 35mm cameras, along with tutorials.