Tech4Learning
Pics4 Learning: Images for Education: Paintings
Dozens of useful photos of various paintings from around the world! A useful reference in an art or history class. Browse through the examples, then click to enlarge.
ibiblio
Ibiblio: Web Museum: Impressionism
A large collection of artists who were considered Impressionists. Click on the links to get information on the artists and see examples of their paintings.
Other
American Impressionist Selections
A great list provided of American Impressionist artists and their exhibits. A visual site of artist's paintings of impressionism style.
Other
Alien Travel Guide: Styles of Painting
A descriptive site from Alientravelguide.com that explains nine different styles of painting.