The following links will be of interest to Historical Group members and to those interested in photographic history. If you are a researcher check out the blog posting describing how to research photographic history. 

UK & Ireland Photography Collections and 
Museums with significant holdings of photography

National Media Museum, Bradford
One of the world's leading photography museums, it houses the national collections of photography, cinematography and television, and holds important collections including Kodak Museum, Science Museum, Daily Herald archive and others.
Scottish National Photography Collection, Edinburgh, Scotland
The photography collection was established in 1984 reflecting the increased significance accorded to early photography, in particular the portraits by Robert Adamson and David Octavius Hill. The collection continues to acquire photography from the 1840s to the present day.
National Photographic Archive, Dublin, Ireland
The photographic collections comprise approximately 5.2 million photographs, the vast majority of which are Irish. While most of the collections are historical there are some contemporary collections. 
National Collection of Welsh Photographs, Wales
The National Library of Wales houses over 800,000 photographs connected to Wales.
British Library, London
The UK's national library with important holdings of photography including the India Office Library, W H F Talbot archive, plus collections of books, periodicals, trade literature and patents relevant to photography.
Library of Birmingham, Birmingham
One of the UK's national collections of photography which includes the Benjamin Stone Collectiom Francis Bedford Collection, Frith Collection and archives of organisations and photographers. 
Victoria and Albert Museum, London
Holds the national collection of art photography.
International Museums George Eastman House

George Eastman House, Rochester, NY, USA
International Museum of Photography and Film.
Bibliothèque nationale de France, France 
Photographs were only subject to legal deposit arrangements from 1925 onwards. However, photographers voluntarily deposited their works in the 19th century.
Preus Museum, Norway
The Preus Museum is the national museum of photography in Norway. 
Photo-History News, Sources and Archival Resources W H F Talbot letter

British Photographic History blog
News, events and information relating to British Photographic History and wider information from international photo-history
A directory of London photography studios and companies from 1841-1901. The site also acts as a portal to photography collections in London. 
Photographic Exhibitions in Britain 1839-1865
This is a research database containing individual records for over 20,000 photographic exhibits drawn from forty exhibition catalogues published between 1839-1865.
Exhibitions of the Royal Photographic Society 1870-1915
This is a research database of over 45,000 records from the annual exhibition catalogues of the Photographic Society, London, published between 1870 and 1915.
The Correspondence of William Henry Fox Talbot
The Correspondence of William Henry Fox Talbot Project has prepared a comprehensive edition of the nearly 10,000 letters to and from Talbot (1800-1877).
Directory of Photographic Collections in the United Kingdom
The Directory is a portal to Institutions in the UK, and provides information and contact details of publicly accessible photographic collections.
Photographic History Research Centre, Leicester
The Photographic History Research Centre (PHRC) has a unique approach to photography and its social and cultural manifestations. It undertakes innovative research on photography and its practices from the early nineteenth century to the present day.
History and Theory of Photography Research Centre, London
The Centre aims to facilitate, exchange and showcase existing and new interdisciplinary research on the History and Theory of Photography at Birkbeck and in the wider photographic and academic community. 
Photography and the Archive Research Centre, London
The Centre encourages research in photography, its history and practice.

If you know if further resources that should be added email the webmaster.