World Wide Art Resources – features contemporary art, art news, history, and contemporary artist & gallery portfolios
Art & Architecture Thesaurus – contains more than 125,000 terms related to “fine art, architecture, decorative arts, archival materials, and material culture”. More than just a thesaurus, it contains definitions, historic & contemporary terms, and variants.
Artcyclopedia: the Fine Arts Search Engine – as of 2006 this site had “indexed 2,300 art sites, 95,000 links to 180,000 artworks by 8,200 renowned artists”.
AskART – what began as a site devoted to American artists now includes international artists. There are listings for over 155,000 artists from early 16th-century to the present day. Some portions are fee-based, but a huge amount of biographical and statistical data is available for free.
The NYPL Picture Collection Online – this site provides access to 30,000 digitized images from books, magazines, & newspapers, as well as, original photos, prints, & postcards all of which are part of the New York Public Library’s extensive collection. The site also links to a newer site which contains many of the same images, but offers slightly different search options.
Heilbrunn Timeline of Art History – supported by several foundations and featuring the art of the Metropolitan Museum of Art, this is a “chronological, geographical, and thematic exploration of the history of art around the world”.
Louvre Museum – explore the Louvre! The Louvre database of exhibits is available in English.