Fantasy Flight Games Homepage: The owner and publisher of all the games found on this site, thus far. Worth going there for news, product information, and tons of articles.
CardGameDB: Forums, Deck Builders, Articles, and tons of resources for ALL the LCGs. Basically, what I want this site to become, but didn't know about before I started. I won't pretend like I can compete with that... but I'll still try to provide some useful services!
Deckbox: Contains Deck Builders, card inventory trackers, and ways to find other people who play a variety of card games. From the LCG perspective, it only includes Warhammer: Invasion... but hopefully in time they'll add more.