The University of Manitoba campuses are located on original lands of Anishinaabeg, Cree, Ojibwe-Cree, Dakota, and Dene peoples, and on the National Homeland of the Red River Métis. More
The Google Art Project: Like Street View for Museums
http://www.googleartproject.com/ gathers together seminal works from Germany, Russia, New York, and 14 other locations online. The interactive street-view-style interface makes even hairline cracks visible. New York's Metropolitan Museum of Art and the Museum of Modern Art are among the participating galleries.
Dictionary of subjects and symbols in art
Dutch Paintings of the Seventeenth Century
This is a Getty initiative and is a digital catalogue produced by the national gallery of Art, Washington.
Getty Images
Includes stock photography, editorial photos, and some moving images.
Flickr Commons
A free public collection of photographs from major photography archives. Contributors include the Library of Congress, the Smithsonian Institution, and more.
Images Resources compiled by Janin Henri, UCLA is an excellent resource! Why reinvent the wheel?
GENERAL SUBJECT DICTIONARIES
Encyclopedia of Comparative Iconography: Themes Depicted in Works of Art
Dictionary of symbolism: cultural icons and the meanings behind them