Oblivion

News, character information, story theories, and media.
http://www.geocities.com/dark_dragon1234/

FFShrine

Screenshots, trailers, information on the music, characters, staff, story and rumors surrounding the movie.
http://www.ffshrine.org/ffac/ffac.php

AdventChildren.net

A fan page with information on the characters, storyline, and developers behind the movie. Includes frequently udpated news, a discussion forum, and a chat room.
http://www.adventchildren.net/

Advent Children Net

Story information and theories, trailer translations and media.
http://ff7ac.net/

IMDB

Cast and crew details, release dates, format information and a message board.
http://www.imdb.com/title/tt0385700/

RPGamer

News articles and collected media.
http://www.rpgamer.com/games/ff/ff7ac/ff7ac.html

Final Fantasy VII: Advent Children

Fan page offers plot and character information, screenshots, wallpaper, magazine scans, and trailers.
http://unlimitedgamer.net/ff7ac.php

IGN

Basic background information about the movie with news coverage and media (trailers and screenshots).
http://psp.ign.com/objects/608/608155.html