Guggenheim Collection: Willem de Kooning
- Works in the collection, biography, and suggested reading.
- http://www.guggenheimcollection.org/site/artist_works_36_0.html

Willem de Kooning
- National Gallery of Art page offers short biography and images of the artist's works.
- http://www.nga.gov/cgi-bin/psearch?Request=S&imageset=1&Person=7860

de Kooning, Willem
- Fact Monster encyclopedia article provides information covering the life and works of the painter. Includes bibliography and pronunciation key.
- http://www.factmonster.com/ce6/people/A0815009.html