Art History: Image Resources
Maintained by Chris Witcombe, Art History Department, Sweet Briar College. Provides links to art historical image sites, arranged by period.

Image Collections and Online Art
Created as part of Andrew Midkiff's "Mother of All Art History Link Pages," ICOA groups sites by subject and place: Europe, the Americas, photography, etc. Currently maintained by Patrick Young, Art History Department, University of Michigan.

Major Museum, Library, and University Sites 

Ackland Art Museum Collections Search

American Memory Project
American Memory is a digital record of the American experience that includes 64 collections of photography and prints. Browse by topic, time period, medium, place, or search the database using keywords

Art Images for College Teaching (AICT)
Art Images for College Teaching is the personal, non-profit project of art historian and visual resources curator Allan T. Kohl. The images displayed were photographed on location by the author, who consents to their use in any educational and non-commercial application. The collection ranges from classical to early twentieth-century art.

British Museum: Collection Database
Currently includes objects from central, east, south and southeast Asia; ancient Egypt and Sudan; Europe; ancient Greece and Rome; prehistory; the Museum's collection of two-dimensional art.

George Eastman House: Photography Collections Online

Metropolitan Museum of Art
The Metropolitan Museum of Art's website contains a large browseable online collection of images.

Musei Vaticani
The Vatican Museums website includes sections where users can view the collections online or take virtual "tours" of the different Vatican museums. Includes information about the works and the ability to zoom in on details.

National Portrait Gallery (UK)
Out of the over 330,000 works of art in the National Portrait Gallery, its online database contains information on 84,967 works of art-44,595 of these records contain images. The database can be searched by sitter, artist or portrait. The site also allows browsing of the collection by groups and groupings of sitters (http://www.npg.org.uk/live/pegroup.asp), subjects and themes (http://www.npg.org.uk/live/petype.asp), and by A to Z listings of individual sitters (http://www.npg.org.uk/live/search/a-z/sitA.asp) or artists (http://www.npg.org.uk/live/search/a-z/artA.asp).

National Portrait Gallery(USA) Portrait Search
The Smithsonian's National Portrait Gallery is currently incorporating digitized images into its NPG Portrait Search database. Allows searching of over 12,000 records in the database. The NPG website also allows searching of around 70,000 records in the Catalog of American Portraits, which is a national survey of American portraits in collections across the country. A database of biographical information on 50,000 artists or sitters with links to related works is also available.

New York Public Library Digital Collections
The Digital Gallery located on this site provides free and open access to over 640,000 images digitized from the New York Public Library's vast collections, including illuminated manuscripts, historical maps, vintage posters, rare prints, photographs and more.

Smithsonian Images
Maintained by the Smithsonian Photographic Services Office, Smithsonian Images provides access to digital contemporary and historic images from the collections of the National Museum of American History Bering Center, National Museum of Natural History, and National Air and Space Museum.

SPIRO: UC Berkeley's Slide and Photograph Image Retrieval

VADS
An image database based at the Farnham Campus of the University for the Creative Arts (UK) that contains over 100,000 images of design and the applied arts.

Image Search Engines, Photosharing, and Commercial Sites 

Artnet
Artnet is an online gallery network for buying, selling, and researching artwork online. With more than 150,000 works by over 25,000 artists from around the globe, artnet includes thousands of full color images. Search, browse alphabetically by artist, or explore galleries focusing on specific genres of art.

Google Image Search
Google Image Search indexes millions of images on the web-it provides a thumbnail of each image as well as the source website for that image. This is another good way to find images easily, though image quality does vary.

Flickr