This document consists of a list of references to various websites related to famous films directed by Alfred Hitchcock such as Psycho, The Birds, North by Northwest, and Dial M for Murder. The references provide information on Hitchcock's biography and filmography, reviews of some of his films, details on film posters and soundtracks, and academic resources about his cinematography and films. The document collects these external references related to studying Alfred Hitchcock and understanding his body of work.