- 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.
- Autopatchcards.com - NFL, NHL, NBA, and MLB autographed, and limited-release cards. Personal trade lists, offers, auctions, and pictures.
- CardFu Sports Card Blog, News, and Community - Features a weblog about sports card collecting news and commentary, trading and discussion forums, and free sports card image hosting.
- CardTarget.com - Tools for collectors of eTopps online trading cards. Includes price guides, auction search, market tools, and community message boards.
- Checklist Central - Checklists for baseball, football and basketball. Basic and collector series available.
- Chitownjak's Card Page - Trading baseball (major/minor), basketball, hockey and football cards across the country.
- Collector Link - Search engine for locating trading card collecting sites. Over 2000 sites are catalogued.
- Delphi Collectibles Forum - Offers a variety of articles relating to collecting cards and memorabilia. Includes links.
- eTopps Clubhouse - Contains trading board, checklists, chat room, trivia quiz, news, polls, and contests.
- 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.
- Gallery of Sports Cards - Baseball, basketball, football, hockey and racing cards displayed by sport, index or thumbnail.
- 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.
- Get That Card - Listings of links to various types of collectors. Collectors database, hobby links and free membership.
- Global Authentication Inc. - Provider of grading and authentication services. Pricing information, trade show dates, dealer list, mentors, account login and specials.
- Hobby Insider - Includes message board, interviews, and reviews.
- HobbyGuy.net - Personal hobby site focusing mainly on sportscards, music and movies.
- JL's Page - Includes a complete listing of baseball and hockey cards in personal collection.
- Marcardz Sportscards & Memorabilia - Sportscards inserts, star cards, certified autographs, signed and unsigned memorabilia.
- Naxcom.com - Buy/sell sports collectibles marketplace with no listing, membership or monthly fees.
- Off The Wall Cards - Store has graded, rookie, sets and singles. Buy list, ebay feedback and show schedule.
- OpenChecklist - Free resource for Sports and Non-Sports trading card checklists
- Professional Sports Authenticator - Card authentication and grading service. Message forum, collector club, registry, and submission of cards for grading by PSA experts.
- Scott's Card & Sked Trading Site - Has want/trade lists for sports/non-sports cards and sports pockets skeds. Includes images of schedules to trade.
- 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.
- Sportlots.com - Marketplace that sells cards for dealers. Searchable database, registration information, bonus program.
- Sports Card Forum - Message boards and online marketplace for trading card enthusiasts and merchants.
- Sports Card Source - Information on the hobby. Searchable database of players cards.
- Sports Cards - Buy, trade, and sell baseball, basketball, football, and hockey cards.
- Sports Hero's - Collector offering cards for sale in a gallery including stars, rookies, inserts. Tribute to Dale Earnhardt. Contact information included.
- Sportscard Guarantee Corporation - Sportscard grading and authentication. SGC gives a written grade guarantee on each card it grades.
- SportsCardFun.com - A baseball card trading community. Other sports cards available for trade include football, basketball and hockey cards.
- The American Card Exchange - Trading platform for sports cards...nascar, baseball, football, basketball, hockey, etc.
- 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.
- The Pit - Buy and sell trading cards including baseball, football, hockey, and basketball at online market. Provides message forum.
- The Sports Cards Answer Man - Offers collector email newsletter from a consumer point of view, as well as classifieds, message board, and links.
- The Topps Company, Inc. - Manufacturer of sports trading cards including baseball, football, basketball, and hockey. Provides sports message forum.
- 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.
- Trader Crack's Sports Card Trading - Features chat, want list, newsletter, calendar, trading tips, card test lab, and links.
- Trader Retreat - Features trading discussion forums for all major sports including basketball, football, baseball, hockey, and golf. Chat room included.
- Trading Card Central - Resources for sports and non-sports trading card collectors. Includes hobby news, articles, box breaks, product reviews, and forums.
- Uncataloged trading cards - Previously unknown nonsports trading cards, mostly pre war candy and gum.
- VB Cards - Sportscard trading shows held in Methuen, Massachusetts and in Plaistow, New Hampshire. Show dates, location, and directions included.
- WrestlingTradingCards.com - Complete checklists of all professional wrestling trading cards, from the late 1800s to current.
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