GETTY RESEARCH INSTITUTE
WIKI-MEDIA COMMONS
WIKI-PAINTINGS
INTERNET ARCHIVE BOOK IMAGES
GETTY OPEN CONTENT IMAGES
RIJKSMUSEUM (NL)
FLICKR COMMONS
PITTS.EDU THEOLOGY IMAGES
NYPL DIGITAL GALLERY
THE METROPOLITAN MUSEUM (NY)
HARVARD ART MUSEUM
GOOGLE IMAGE SEARCH
GOOGLE ART PROJECT
ART RENEWAL
FREE-IMAGES
https://www.loc.gov/photos
https://repository.asu.edu/
OTHER:
MCC ART COLLECTION
BIBLIOTHEQUE DE TOULOUSE
MUSEUM OF PHOTOGRAPHIC ARTS (MOPA)
http://www.europeana.eu