Grease - Official site of the British touring production includes ticket information, schedule, cast and crew, and games.
Grease on Broadway - Official site for the 2007 New York production includes ticket sales and synopsis.
Moonstruck Drama Bookstore: Grease - Brief history of the musical by Jim Jacobs and Warren Casey, plus links to cast albums and sheet music.
StageAgent.com: Grease - Plot synopsis and character descriptions for the musical, including voice part, dancing difficulty and summaries for each character.
