After entering the database, select "Images" from the "More" option on the blue bar at the top of the page. Contains over 180,000 images from Getty Images, UPI, Motion Picture and Television Photo Archive and more. A good place to find historical and natural science photos.
More professional than Flickr or Google, this site allows graphic artists and designers to share samples of their work. Features a somewhat random selection of paintings, photography, and graphic design, but the overall quality is high. Many selections are annotated by the artist.
The Library of Congress provides free and open access to written and spoken words, sound recordings, still and moving images, prints, maps, and sheet music. These materials chronicle historical events, people, places, and ideas that continue to shape the world, serving the public as a resource for education and lifelong learning.
Search millions of photographs from the LIFE photo archive, stretching from the 1750s to today. Most were never published and are now available for the first time through the joint work of LIFE and Google.
Images from many US Government departments, from official portraits to medical images and historical documents. Some of these photos are in the public domain or U.S. government works and may be used without permission or fee. However, some images may be protected by license or copyright. Read the disclaimers on each site before using these images.