Blue Moon - Scans, information, and pricing guidelines for North American trading cards. Contains extras and wishlist for North American and Japanese series.
Level Five Senshi Club - Devoted to trading and answering questions about the Collectible Card Game series.
Luna's Card-o-Rama - Cardzillion, Dart, and Fifth Anniversary cards available for trade or sale.
Phone Home Pod - Perhaps the largest Sailor Moon phonecard collection east of the Pacific. Organized by manufacturer.
Podwall's Completed Collections - Scans of most Japanese series and all Cardzillion sets. Offers cards and oddball anime goodies. Accepts cards, phonecards, and cels in trade.