- France's national library catalogue
- The Crosby Stills and Nash Official Site
- Actors Compendium
- Filmreporter.de - Biography (German)
- LookToTheStars.org - David Crosby's charity work, events & causes
- Lucy Lyrics - list of albums and songs
- LucyWho.com - Trivia, Quotes, Trailers, Posters, Photos
- Who's Dated Who?