AIGA -- The Professional Association for Design
American Academy of Arts & Sciences -- serving the nation as a champion of scholarship, civil dialogue, and useful knowledge. As one of the country's oldest learned societies and independent policy research centers, the Academy convenes leaders from the academic, business, and government sectors to respond to the challenges facing the nation and the world.
College Art Association -- the preeminent international leadership organization in the visual arts, promoting such arts and their understanding through advocacy, intellectual engagement, and a commitment to the diversity of practices and practitioners.
National Art Education Association -- founded in 1947 and is the world’s largest professional art education association with over 20,000 active members focusing on visual arts educators. The NAEA defines the visual arts as traditional fine arts like drawing, painting and photography as well as more modern arts like graphic design and animation. It also includes landscape design, interior design, environmental design, ceramics, jewelry, paper craft and a number of other types of art.
National Society of Artists (NSA) - designed to meet the needs of artists who work in all media, rather than just one. It is a unifying force between artists of different media, styles, techniques, and outlooks. Through workshops, exhibitions, and competitions, NSA serves the professional and beginning artist, as well as the collector and anyone who enjoys seeing fine art.
Art-Cyclopedia -- The fine arts search engine
Artsnet -- An information clearinghouse of arts management resources and a directory of arts and culture sites on the web.
AskART -- an online database containing information and works of close to 300,000 artists, with information ranging from biographies to auction records for any artist's works.
International Center of Photography -- the world’s leading institution dedicated to photography and visual culture, founded in 1974 to preserve the legacy of “concerned photography”—the creation of socially and politically minded images that have the potential to educate and change the world.