Coolie: Character and actor profiles, photos, episode list, and quizzies.
Disney Channel: Lizzie McGuire: Official site includes games, quizzes, photos and downloads.
Release Lizzie: Petition to get the rest of the volumes of the series released in box sets.
The Digital Bean Smoothie: Homepage for the Yahoo-based fan community with cast, character and episode guides, along with awards, interviews and FAQs.
The Internet Movie Database (IMDb): Lizzie McGuire: Cast, crew, and production information, as well as viewer comments.