  |
A History of Photography - http://www.rleggat.com/photohistory/
Contains an extensive history, from earliest times to the 1920s. Includes biographical information on all significant photographers. |
  |
History of Photography Timeline - http://photo.net/learn/history/timeline
Highlights major developments in timeline format. |
  |
George Eastman House Collections - http://www.eastmanhouse.org/inc/collections/photography.php
Collection includes thousands of photographs and negatives dating from the invention of photography to the present day including many milestones and covering most photographic processes. |
  |
The Keystone-Mast Collection - http://www.cmp.ucr.edu/mainFrame/collections/guides/kmast/
Archive at the California Museum of Photography offers an encyclopedic view of world history and cultural diversity. |