Other
National Portrait Gallery: Collections: Sitters a Z
This site from the official National Portrait Gallery of the United Kingdom is a resource to search the collection by typing in a subject's name or access the section on artists.
New York Times
New York Times: Photographic Portraits of the Year's Best Actors (2004)
This portfolio of black-and-white portraits of Oscar-nominated film stars captures a range of faces, poses, moods, and points of view. Excellent site for comparing and criticizing artistic choices and approaches and for inspiring...