Art Nouveau World Wide Server
   Resource site for information on the period and examples of how the style was used.
   http://perso.orange.fr/artnouveau/

Gaudí and Art Nouveau in Catalonia
   Offers an overview of the topic and examples in architecture, sculpture, painting, decorative arts. Biographies of the artists and architects; virtual walk around Barcelona; bibliography.
   http://www.gaudiallgaudi.com/