- The Archive of Early American Images“a database of pictures of the colonial Americas…” from the John Carter Brown Library at Brown University
- British Library Images Online thousands of images from the British Library’s collections
- Google Image Search “most comprehensive image search on the web”
- Library of Congress Prints & Photographs Online Catalog close to a million images of people, historical events, architecture, etc.
- Life photo archive millions of photos relating to US history and world events hosted by Google
- NYPL Digital Collections digitized images from primary sources in the New York Public Library’s collections–includes manuscripts, maps, rare prints, photographs
- Open Education Database guide to little-known image collections with millions of free, hi-res images
- Road 2.0 Duke University Libraries’ digital collection of over 30,000 images of outdoor advertisements
- Yahoo Images search for images