ArtLex

A dictionary of artistic terms, mainly concerning painting and other visual arts. With more than three thousand definitions, this site can be a useful reference. There is also a collection of links to other interesting art related websites.

http://www.artlex.com/

Art Cyclopedia

The guide to great art on the Internet. With references to more than eight thousand artists, a full index of more than two thousand art websites, this is a quality resource. The main search function allows visitors to search by artist name, artwork or even art museum. There is also considerable information on artistic movements and styles over time.

http://www.artcyclopedia.com/

AskArt.com

An information site for artists, with research resources and information about purchasing art works. The Ark marketplace can be searched by artist, dealer, auction house and other categories. There are also a number of articles available on artistic movements and noteworthy artists.

http://www.askart.com/