art-exchange: Artist database for art buyers and sellers.
ArtAreas.com: List artworks by style, subject, medium or ethnography. Free listings for artists, galleries or collectors.
Buy Original Art: Provides listings and information about online venues for purchasing original artwork.
Metropolart: Online listing of contemporary artists, sorted by name, European city or technique. Also exhibitions and museums.
Mixed Greens: Promotes visual artists and documentary filmmakers by selling art, exhibiting artwork, producing films and cultivating new collector bases.
Original Art Source: Online directory of artists and galleries including painting, photography, sculpture, and jewelry.