ARTstor

Broad collection of more than 1.8 million digital images

CAMIO

Database of images, audio/video, and mixed media arts

Photography: The World through the Lens

Part of Nineteenth Century Collections Online: collections of photographs, albums, photographically illustrated books, and texts on the history of photography

SCIPIO

Art and rare book sales catalogs, 16th century-present

WorldCat

Advanced search for resources in libraries worldwide