American Museum of Photographyhttp://www.photographymuseum.com
This site contains its own large collection and changing exhibits. Also includes a research center with information about the history of photography and links to other collections.
Art History Resources on the Webhttp://witcombe.bcpw.sbc.edu/ARTHLinks.html
Site highlights include categories from all periods, a list of web links to worldwide museums and galleries, and a geographical index of web links.
The Getty Institutehttp://www.getty.edu
Web site of the J. Paul Getty Museum. Click "Research Institute" to access the museum's online library catalog, searchable databases, special multimedia resources, and more (see "Research Tools" near the bottom of the page). Click "Explore Art" and then "Collections" to browse this extensive site by artist, collection type, or subject.
Local and Global Internet Resources for Art Historians and Art History Studentshttp://www.wisc.edu/arth/otherresources.html
A useful starting point for any research project on art. Published by the University of Wisconsin-Madison School of Art History.
Metropolitan Museum of Art Time Linehttp://www.metmuseum.org/toah/splash.htm
An intricate chronological time line from 20,000 B.C. to 1,600 A.D.
World Wide Arts Resourceshttp://wwar.com
Try the "Art History" link for links to sites and information on periods, genres, and artists. See the "Arts Publications" link for links to journals about art. The "Architecture" link leads to information on architectural history, movements, and styles.