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/