An "electronic library" of photos, audio clips, and written stories from the Associated Press...

Over 5,000 digitized images of buildings and cities drawn from across time and throughout the world...

A collection of more than half a million "images digitized from primary sources and printed rarities in the collections of The New York Public Library, including illuminated manuscripts, historical maps, vintage posters, rare prints and photographs, illustrated books, printed ephemera, and more...

A search engine for images which can translate search terms into any of hundreds of languages and return results from both Flickr and Google Images...

Commercial site for photo submission and critique...

Listing from Wikipedia of sites which contain images in the public domain, i...

Online archive of over 100,000 photos from 1995 to the present...

Database of "dozens of digital image collections from Museums, Universities and private collections throughout the world" in five categories: cartography, fine arts, architecture, photography, and other...