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/

Art Nouveau World Wide Server Resource site for information on the period and examples of how the style was used. http://art-nouveau.kubos.org/en/

The British Museum : Islam Introduces the museum's collection of Islamic art; includes a listing of information sheets and events. http://www.british-museum.ac.uk./education/islam/