APBA Games
   Card collector software for managing collections. Major League Baseball board game, pro football board game and Baseball for Windows. Includes downloads, player list, and kid's clubhouse.
   http://www.apbastadium.com/

Autopatchcards.com
   NFL, NHL, NBA, and MLB autographed, and limited-release cards. Personal trade lists, offers, auctions, and pictures.
   http://www.autopatchcards.com/

CardFu Sports Card Blog, News, and Community
   Features a blog about sports card collecting news and commentary, trading and discussion forums, and free sports card image hosting.
   http://www.cardfu.com

CardTarget.com
   Tools for collectors of eTopps online trading cards. Includes price guides, auction search, market tools, and community message boards.
   http://www.cardtarget.com

Checklist Central
   Checklists for baseball, football and basketball. Basic and collector series available.
   http://www.checklistcentral.com

Collector Link
   Search engine for locating trading card collecting sites. Over 2000 sites are catalogued.
   http://www.collector-link.com

Delphi Collectibles Forum
   Offers a variety of articles relating to collecting cards and memorabilia. Includes links.
   http://forums.delphiforums.com/collect/public/cards.html

Fanatic Collector
   Provides pricing, live auctions, historical charts, and research on cards from major auction sites. Brings stock market data over the Web and Wireless Devices.
   http://www.fanaticcollector.com/

GDS Cards (Horseracing Trade Cards)
   The sole manufacturer of GDS Cards collectable horseracing cards and post cards, also dealing with racehorse artists in horseracing art, horseracing prints, horseracing paintings and racehorse photographs.
   http://www.gdscards.co.uk

Get That Card
   Listings of links to various types of collectors. Collectors database, hobby links and free membership.
   http://www.getthatcard.com

Global Authentication Inc.
   Provider of grading and authentication services. Site includes pricing information, trade show dates, dealer list, mentors, account login and specials.
   http://www.globalauthentication.net/

Hobby Insider
   Includes message board, interviews, and reviews.
   http://www.hobbyinsider.net

HobbyGuy.net
   Personal hobby site focusing mainly on sportscards, music & movies.
   http://hobbyguy.net

Modern Era Sports
   Dedicated to integrity in collecting. Discussion boards, chat, polls, free email, and links.
   http://webvena.com/webs/akafocus/index.htm

Naxcom.com
   Buy/sell sports collectibles marketplace with no listing, membership or monthly fees.
   http://www.naxcom.com

OpenChecklist
   Free resource for Sports and Non-Sports trading card checklists
   http://www.openchecklist.com

Professional Sports Authenticator
   Card authentication and grading service. Message forum, collector club, registry, and submission of cards for grading by PSA experts.
   http://www.psacard.com/

Prospects Sports Cards & Comics
   Prospects Sports Cards & Comics has been serving card and sports collectors since 1989 providing great service and pricing on Collectibles, Hockey cards, NASCAR collectables and Sports Trading Cards.
   http://www.prospectssports.com

Sport Swapper
   Sport Swapper is the premier place to swap, buy, and sell baseball cards, football cards, hockey cards, basketball cards, golf cards, and other sports memorabilia.
   http://www.sportswapper.com

Sportlots.com
   Marketplace that sells cards for dealers. Searchable database, registration information, bonus program.
   http://www.sportlots.com

Sports Card Forum
   Message boards and online marketplace for trading card enthusiasts and merchants.
   http://www.sportscardforum.com/

Sports Card Source
   Information on the hobby. Searchable database of players cards.
   http://www.sportscardsource.com

SportsCardFun.com
   A baseball card trading community. Other sports cards available for trade include football, basketball and hockey cards.
   http://www.sportscardfun.com

Sportscard Guarantee Corporation
   Sportscard grading and authentication. SGC gives a written grade guarantee on each card it grades.
   http://www.sgccard.com

Sportsology Cards
   Hobby news, reviews and first looks at trading cards from all major manufacturers. Discussion boards, chat, store finder.
   http://www.sportsology.net/cards.php3

The American Card Exchange
   Trading platform for sports cards...nascar, baseball, football, basketball, hockey, etc.
   http://www.theacex.com

The Consummate Card Collector
   Provides a nice look at the sportscard industry. Features information explaining the various kinds of cards and ways to collect them.
   http://mypeoplepc.com/members/commando/consummatecardcollector/

The Pit
   Buy and sell trading cards including baseball, football, hockey, and basketball at online market. Provides message forum.
   http://www.thepit.com/

The Sports Cards Answer Man
   Offers collector email newsletter from a consumer point of view, as well as classifieds, message board, and links.
   http://www.sportscardsanswerman.com/

The Topps Company, Inc.
   Manufacturer of sports trading cards including baseball, football, basketball, and hockey. Provides sports message forum.
   http://www.topps.com/

The Upper Deck Company
   Producer of major sports trading cards. Offers tips on collecting, card checklists, athlete search, hologram database, memorabilia registry, trade and hobby show information.
   http://www.upperdeck.com/

Trader Crack's Sports Card Trading
   Features chat, want list, newsletter, calendar, trading tips, card test lab, and links.
   http://www.tradercracks.com/

Trader Retreat
   Features trading discussion forums for all major sports including basketball, football, baseball, hockey, and golf. Chat room included.
   http://www.traderretreat.com/

Trading Card Central
   Resources for sports and non-sports trading card collectors. Includes hobby news, articles, box breaks, product reviews, forums and more.
   http://www.tradingcardcentral.com

Uncataloged trading cards
   Previously unknown nonsports trading cards, mostly pre war candy and gum.
   http://www.tradingcards.biz

WrestlingTradingCards.com
   Complete checklists of all professional wrestling trading cards, from the late 1800s to current.
   http://www.wrestlingtradingcards.com

eTopps Clubhouse
   Contains trading board, checklists, chat room, trivia quiz, news, polls, and contests.
   http://www.etoppsclubhouse.com/