Jan Van Eyck, Arnolfini Portrait, 1434
ArtStor has some public collections available.
Google Arts and Culture works with cultural institutions and artists around the world "to preserve and bring the world’s art and culture online so it’s accessible to anyone, anywhere."
Artsy and Hyperallergic are good resources for what's going on now in the art world.
Museum websites, artist websites, and books are also great sources of authoritative images and information!
The library subscribes to two citation indexes:
Arts and Humanities Citation Index
Google Scholar also provides excellent citation tracking tools.
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