National Gallery of Art
National Gallery of Art: Gemini Artist Workshop 1966 1996
An invaluable site showing works and discussing artists who were part of the Gemini Artist Workshop. Artist include David Hockney, Andy Warhol, Nancy Kienholz and over 50 others.
Curated OER
Baltimore Museum of Art Sculpture Garden
Nice images of outdoor scupture by five different artists including Mark di Suvero. Various mediums were used such as steel, concrete, granite, and bronze.