Scanned translations sorted by volume, as well as links to other projects.

Story line, character profiles, crossovers, school information, fan fiction, images, multimedia, and links.

Character profiles, school information, cases, and links.

Official Tokyopop site for the series, with introduction, creator profile, characters, manga preview, feature, and volume information.

Character profiles, name information, images, fan fiction, and links.

Music, story synopsis, and image galleries.

Plot summary, character profiles, crossovers, and links.