National Gallery of Art
National Gallery of Art: Camille Pissarro, Vincent Van Gogh, Paul Cezanne
This site from the National Gallery of Art provides a tour of the leading artists of the post-impressionist movement: Van Gogh, Gauguin, Seurat, and Cezanne.
Art Institute of Chicago
Art Institute of Chicago: Art Access: Impressionist and Post Impressionist Art
In the late 19th century, the Impressionists defied academic tradition in French art with their emphasis on modern subjects, sketchlike technique, and practice of painting in the open air with pure, high-keyed color. The Art Institute of...
Other
Impressionist & Post Impressionist Art
This article features information about the post-impressionist art auctions of Christie's and Sotheby's. Includes many colorful pictures of the artworks.