Anime Colony: FLCL - Review of OVA 1-2. Rated 92% (A-) by Ralph Jenkins. "With high production values, an interesting cast, robot action and English subtitles, it's hard to go wrong with this series."
Deuxdei - Introduction, screen captures, character profiles, music samples, commentary, and links.
FuriKuri.com - Episode guide, music, character profiles, availability, and wallpaper.
Gainax: FLCL - Official web site. Story introduction, character profiles, production staff, and general information. [English, Japanese]
NERV's FLCL Site - Fansite with galleries, original character designs, ICQ skins, music, and a BBS.
Psx-dude.net - FLCL - Review covering story, animation, and music.