IMDb is a website that is a catalog for films and television shows. IMDb is an acronym for "Internet Movie Database". The site is largely updated by site users, much like a wiki, but with submission moderation. For this a reason, Lostpedia does not consider IMDb a canonic source of information, as errors are frequently listed.
Each actor and production crew member has an individual page on IMDb that details his filmography and biography. In Lostpedia, a link to each person's IMDb page can be found in the infobox under the photograph on the right side of the article.