Yahoo! Groups: Yu-Gi-Oh Card Club

Provides downloadable files, pictures, community links and forums.
http://groups.yahoo.com/group/yugioh_card_club/

Shadow Realm

Detailed card game information including type of cards, type of decks, deck construction, spoilers, and forums.
http://www.geocities.com/aznsyco184/

Seto Kaiba's Dueling Guide

Contains card databases, tutorials, strategies, and information on Seto Kaiba.
http://www.seto-kaiba.com/

Yu-Gi-Oh TCG

Character deck information and pictures.
http://www.angelfire.com/dragon/cflanagan/Checklists.htm

Duel Yu-Gi-Oh

Includes deck information, articles, and reviews.
http://www.duelyugioh.com/

It's Time to Duel

Contains information on the background storyline, magic, and pictures of cards.
http://yugioh.cards.mysite.wanadoo-members.co.uk/

Yu-Gi-Oh!

Card images and descriptions.
http://www.geocities.com/hotthingsonwheels/yugioh.htm

Yu-Gi-Oh Realms

Offers tools such as deck builder, collection organizer, and search engine for statistics and information of cards. Forum also included.
http://www.yugiohrealms.com/

Finding the Heart of the Cards

Card of the week, combo of the month, tips, strategies and restrictions.
http://www.freewebs.com/findingtheheartofthecards/

Jimster's Yu-Gi-Oh

Pictures, Japanese translations, and downloadable files.
http://www.geocities.com/jimster480/YugiohMain.html

Yu-Gi-Oh!

Official European site, offering news, training, card lists, tournament, biographies, and FAQ.
http://www.konami-europe.com/yugioh/uk/

Dark Dragon Den

Includes spoilers, reviews, downloads, chat, and links.
http://www.freewebs.com/darkdragonden20/index.htm

Yugioh Fusion

Forums focusing on the game. Also includes discussion of other games and anime topics.
http://www.yugioh-fusion.com/site/index.php?act=idx

Rise of the Destined

Includes card of the day and combos section.
http://www.freewebs.com/soulsofthedestined/

Yu-Gi-Oh! Trading Card Game

The official site of the trading card game. Includes storyline, rules and deck description, FAQ, news, and tournament information.
http://www.upperdeckentertainment.com/yugioh/

Yahoo Groups: Yu-Gi-Oh Trading Card Game

Offers discussion on rules and strategies.
http://groups.yahoo.com/group/Yu-gi-oh_Trading_card_game/

Duelest Kingdom

Offers deck building information and strategies.
http://www.freewebs.com/joeywheeler/

Pharaoh's Memories

Offers card lists and reviews.
http://www.geocities.com/rocketiger/yugioh.html

Jakanime's Yugioh

Includes ruling of cards, reviews, card of the day, and pictures.
http://www.geocities.com/jakanime/

Realm of the Dragons

Offers a forum dedicated to the game.
http://s3.invisionfree.com/realm_of_the_dragons/index.php

Chaosyugioh

Includes forums, picture galleries, news, previews, and rules.
http://www.geocities.com/chaosyugioh/

Yu-Gi-Oh Cards Forum

Offers a forum about the game.
http://www.yugiohforums.com/

DuelMonsters.ca

Community offering fan works, chats, and a forum.
http://www.duelmonsters.ca/

Chaparral Park Yu-Gi-Oh Tournament

Features information on tournaments in Anaheim, CA. Rules, prizes, and locations.
http://www.geocities.com/yugioh_tournament_ca/

Bakura's Lair

Features card of the day section, deck tips, and tournament reports.
http://www.angelfire.com/ultra/rare

Dragon Spellcaster Warrior Castle

Offers news and information about the game.
http://groups.msn.com/DragonSpellcasterWarriorCastle/

Dark Domain

Offers news game information.
http://www.geocities.com/newzfoxjr/darkdomain.html

Yu-Gi-Oh! Duelist City Tournament

Official site for the Yu-Gi-Oh Duelist City Tournament. Includes rules and game information.
http://www.freewebs.com/duelistcity/

Yu-Gi-Oh Strategy Database

Provides combos, deck strategies, card concepts, and spoilers.
http://www.geocities.com/ygo_sd/index.html

The Yugioh DECK

Online card database searchable with deck building capabilities including a way for users to comment on your deck.
http://www.yugioh-deck.com/