19th Century European Art: Essays on Manet, Monet, Degas, van Gogh.
Cleveland Museum of Art: Impressionism and Post-Impressionism: A guide with slides and extensive notes, mainly aimed at teachers.
First Impressionist Exhibition, 1874: Virtual recreation of the revolutionary show, with images, catalog facsimiles and contemporary criticism. Included works by Renoir, Monet, Pissarro, Morisot, Degas, Sisley, Boudin and Cezanne.
French Impressionism in New Orleans, Louisiana: Article about Degas' work in New Orleans.
Growing up with the Impressionists: the Diary of Julie Manet: Provides a review of this diary which deals with 19th Century Impressionists in Paris.
Impressionism. Gardens of the Sunlight.: The Virtual Gallery of Impressionism and Post-impressionism. Monet, Renoir, Pissarro, Degas, Manet, van Gogh, Cezanne, Gauguin, and others. A lot of high quality images.
The Impressionists at Argenteuil: National Gallery of Art - Impressionist paintings by Boudin, Caillebotte, Manet, Monet, Renoir, and Sisley exploring the fascination with the many progressive paintings created in Argenteuil, France.