National Gallery of Art: Willem de Kooning
- Exhibition history, biography, bibliography, and images.
- http://www.nga.gov/cgi-bin/psearch?Request=S&imageset=1&Person=7860

Artcyclopedia: Willem de Kooning
- Links to works by the artist in art museum sites and image archives worldwide.
- http://www.artcyclopedia.com/artists/de_kooning_willem.html

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

Artchive: Willem De Kooning
- Text from Brian O'Doherty, and list of images on the web.
- http://www.artchive.com/artchive/D/de_kooning.html