A History of Photography
   Contains an extensive history, from earliest times to the 1920s. Includes information on all significant photographers with biographical data.
   http://www.rleggat.com/photohistory/

About Photography: Nudes 1920-1940
   Consists of on the history of nude photography from 1920 to 1940, emphasizing the roles of the famous master photographers. No images.
   http://www.photography.about.com/library/weekly/aa040300a.htm

Albumen Photographs
   Presents the art and science of albumen printing, contemporary research, conservation and treatment of images.
   http://albumen.stanford.edu/

American Museum of Photography
   Covers daguerreotypes to modernism. Research center features a guide early photo processes, book reviews and information on preserving/protecting valuable photographs.
   http://www.photographymuseum.com

Arab Foundation for the Image
   A non-profit association that collaborates with Elysée Foundation in Lausanne to promote photography in the Middle East and the North Africa by locating, collecting and preserving the photographic heritage of that region.
   http://www.fai.org.lb/

Central Pacific Railroad
   Has a photographic history museum; also stereoviews of the first transcontinental railroad.
   http://cprr.org/

City-Gallery.com
   Information on photography, family photographs and images, and genealogy. Focus is on 19th century photography.
   http://www.city-gallery.com/

Cuarterolo Archive
   The Cuarterolo archive is an image bank focused on 19th century Argentine and Latin American photography that houses over 5000 historic photographs.
   http://archivocuarterolo.8m.com

Cut & Paste - A History Of Photomontage
   Covering the artists involved in photomontage in the Berlin Dada movement, 1980s politics, and the present day.
   http://homepage.ntlworld.com/davepalmer/cutandpaste/

Early Visual Media
   History of visual Media, photography pre-cinema prestidigitation danse macabre optical illusions.
   http://www.visual-media.be/

Finding Photographers
   A worldwide index of the books and websites that list photographers and when they worked.
   http://www.findingphotographers.com/

Georgian Museum of Photography
   Virtual museum of images from photography, including portraits, architecture, cultural and historical monuments.
   http://www.photomuseum.org.ge

Historic Photo Archive
   Kodachrome dating guide for vintage slides.
   http://www.historicphotoarchive.com/f2/kodachrome.html

History of Photography Timeline
   A detailed timeline of photography from ancient times to the present.
   http://www.photo.net/history/timeline

Index of UK photographers up to c1950
   Indexes and links for UK photographers, county by county, for the 19th and early 20th century.
   http://www.users.waitrose.com/~rodliffe/

Lafayette Negative Archive
   Catalogue of vintage photographs made by the Lafayette studio of London, containing images made between 1887 and the 1930s, categorized by subject. Has explanatory articles.
   http://lafayette.150m.com/

Magic Lanterns
   Description of the medium plus information on optical systems, components, lanterns types and slide identification.
   http://www.magiclantern14.btinternet.co.uk/

Midley History of Photography
   Presents essays by R. Derek Wood on the history of early photography, the daguerreotype and diorama.
   http://www.midley.co.uk/

Photica Project
   Contains information and articles on historical photographers and groups.
   http://www.cwriley.com/photica/index.htm

Photo Revue
   All about Czech and Slovak photography, history, theory, reviews, profiles.
   http://www.photorevue.com

Photographer Nicephore Niepce
   Dedicated to the History of Photography from its origins by French scientist and inventor Nicephore Niepce. Niepce discovered the process known as Heliography.
   http://www.niepce.com/home-us.html

Photographs: The Metropolitan Museum of Art
   Images, history, and technical information about their extensive collection of photographs.
   http://www.metmuseum.org/collections/department.asp?dep=19

Photography in the 1840s - About Photography
   Comparing the Calotype and the Daguerreotype, the first Welsh photograph, Irish pioneers, and French advances in the art of photography.
   http://www.photography.about.com/library/weekly/aa061702a.htm

Pinhole Photography
   History of pinhole photography, including theory and construction details.
   http://www.photo.net/photo/pinhole/pinhole

The Magic Mirror of Life: An Appreciation of the Camera Obscura
   Many facets of the camera obscura (dark room); the origin of the photographic camera, its place in art, culture and education,vintage instruments,images, photographs, and working camera obscuras are included.
   http://brightbytes.com/cosite/cohome.html

The Weston Exposure Meter Site
   Site dedicated to the Weston Exposure Meter from the earliest days to the Euromaster 3. Includes Photos, information and instruction books, and history of the company and its founder.
   http://www.diaxa.com/weston/

Tintypes and Daguerreotypes
   Article defines what tintypes and daguerreotypes are, the history of the processes, the sizes they came in, and the years they were popular.
   http://www.maine.com/photos/tintypes.htm

Women in Photography Archive
   Focuses on the role of women in photography. Includes essays on women photographers and an online gallery.
   http://www.sla.purdue.edu/WAAW/Palmquist/index.htm