Artchive: Art Nouveau
Article on Art Nouveau from Artchive.com. Includes links on the style of art, architecture and design that peaked in popularity at the beginning of the 20th century.
ArtLex: Art Nouveau
Offers historical information and artwork examples from the art movement called The New Art in French.
Artcyclopedia: Art Nouveau
Summarizes the movement characterized by intricately detailed patterns of curving lines and provides a list of Art Nouveau artists.