The Juggler's Alien vs Predator Collectable Card Game
Provides card lists, online rules, and combos.

Aliens Predator CCG
Contains information such as decks, scenarios, combos, and a list of people in a area who are looking for an opponent.

The Battlefield
Features card list and trading section.

BrokenTusk's Aliens vs Predator CCG Mission Page
Offers original scenarios.

Gateway Station
Features personal campaigns and tips.

Aliens - Predator: House Rules from the Desk of Donovan Raidor
Offers custom rules and original game scenarios.