Crazy for Cinema: Review.
Destination Hollywood: The Philadelphia Story: Synopsis, cast list, photographs, video clips, quotes, trivia, and a message board.
Greatest Films: The Philadelphia Story: Detailed review, synopsis and discussion of the film
IMDb - The Philadelphia Story: Cast/credits plus additional information about the film
Reel Classics: The Philadelphia Story: Cast and crew, awards, article by Ian Irvine, lyrics to one of the songs, and links.
Stage to Screen - The Philadelphia Story: Educator's guide intended to help introduce classic film adaptations of stage plays in the classroom and illustrate and illuminate the elements of drama and film.
TV Guide Online: Philadelphia Story, The: Review, cast, and crew.