British Cartoon Archive
The British Cartoon Archive is based at the University of Kent at Canterbury. It covers the history of British cartooning over the past 200 years. Go to 'Search' to search for and view cartoons
British Library Online Gallery
A British Library digitisation project of 30,000 items including images of maps, prints, drawings, photographs and documents from the British Library's collection.
http://www.bl.uk/ onlinegallery/ index.html
British Pathe Stills Archive
Over 90,000 historic clips from British Pathe Film Archive, covering news, sport, social history and entertainment from 1890 to 2011.
http://www.britishpathe.com/ gallery/ all-galleries
Collage - The City of London Libraries and Guildhall Art Gallery
An image database containing over 20,000 works of art. Includes images from the Guildhall Library's Print Room, one of the best sources of pictorial material on London history, including prints, drawings, watercolours, maps, photographs, and ephemera; and from the Guildhall Art Gallery which specialises in works of London interest and which is particularly strong in Victorian material
http://collage.cityoflondon.gov.uk/ collage/ app
Historic polar images, 1845-1982, from the Scott Polar Research Institute, with photographs from both Arctic and Antarctic expeditions. Each image has a detailed catalogue entry
Geograph British Isles
The Geograph British Isles project aims to collect a geographically representative photograph for every square kilometre of the British Isles. You can search by place, postcode or grid reference.
Images of England
Images of England is an English Heritage initiative and part of the National Monuments Record. The aim is to create a record of all of England's 370 000 listed buildings. Using 'Quick Search' you can search by county, building type or period. You will need to register for 'Standard' and 'Advanced' searching.
Library of Congress Prints and Photographs Reading Room
US national library site. See the 'Prints & Photographs Online Catalog' for over a million digital images (not just US). Other useful sections include 'Resource Lists & Bibliographies', which leads to links to further sites
http://www.loc.gov/ rr/ print/
National Collection of Aerial Photography
The National Collection of Aerial Photography is one of the largest collections of aerial imagery in the world, containing tens of millions of images featuring historic events and places around the world.
National Media Museum
The National Media Museum is situated in the heart of Bradford, UNESCO City of Film. They aim to inspire people to learn about, engage with and create media.
Links to photographic collections and archives both free and priced, photo agencies, ad agencies, graphics, clipart, articles and copyright information.
Science and Society Picture Library
The library represents over a million images from the Science Museum, Media Museum, Railway Museum and Museum of Science & Industry. You can search and browse thousands of digitised images
Thirty Free Image Resources on the Web
Royalty free images from many sites. Check each site's own guidelines if you wish to use their images. This is an article on the About.com site
http://websearch.about.com/ / od/ bestwebsites/ tp/ free-images.02.htm
Web Designer Depot
A website devoted to visual design elements for print and web. Download royalty free images and icon collections for use in projects
http://www.webdesignerdepot.com/ category/ freebies/