Hobby Reference Links:
- Adam Warshaw's Boxing Page
- American Numismatic Society: Coins Online Resources
- Antique Sports
- Autograph Magazine
- The Autograph Network
- Baseball Games: Antique Parlor Games
- Baseball Glove Collector
- Baseball & Tobacco
- Baseball Wrappers
- Blacksox Fan
- Card Shop Finder.com
- Collectors Showcase
- Cycleback's Baseball Museum
- Cycleback's Print & Photographs
- Caramel Cards
- The Conlon Collection
- Cuban Ball
- Cuban Baseball Cards
- English Football Cards
- Figure Realm (Action Figure Resource)
- Game Used Universe
- Leon's Type Card Collection
- Library of Congress: Baseball Cards, 1887-1914
- Library of Congress: Spalding Baseball Guides 1889-1939
- The National Pastime Museum
- New York Public Library: "America's National Game: The Albert G. Spalding Collection of Early Baseball Photographs"
- New York Public Library: George Arents Collection of Tobacco Cards
- Old Cardboard
- Open Checklist
- Postcardy.com (postcard collecting)
- PSA Autograph Facts
- PSA ProBat Facts
- Real Photo Postcard Stamp Boxes
- Smithsonian Libraries: Digitized Journals at IA: Lajoie’s Baseball Guide
- Smithsonian Libraries: Digitized Journals at IA: Police Gazette Sporting Annual
- Smithsonian Libraries: Digitized Journals at IA: The Reach Official American Baseball Guide
- Smithsonian Libraries: Digitized Journals at IA: Spalding’s Baseball Guide and Official League Book
- Smithsonian Libraries: Digitized Journals at IA: Spalding’s Official Baseball Record
- Sports Antiques
- Sportscard Checklist.net
- TeamSet4U
- Ticket Stub Collection
- Topps Production Codes
- Upper Deck Sheets.net
- Vintage Ball
- Vintage Football Card Gallery
- Virtual Card Collection
- World Series Rings.net
Collectibles Companies:
- AFA-Toy Graders
- Beckett Grading
- Beckett Price Guides
- CGC-Comic Book Graders
- Collectors Universe- PSA
- Donruss- Panini America
- Hartland of Ohio
- In The Game Trading Cards
- JSA- James Spence Authentication
- Leaf Trading Cards
- Panini America
- Panini America Blog
- SGC
- Spawn.com- McFarlane Figurines
- Sports Collectors Digest
- Sports Speakers
- Topps
- Tuff Stuff
- Upper Deck
- American Memorabilia
- Brockelman & Luckey
- Classic Auctions
- Clean Sweep Auctions
- Collect.com Auctions
- Cuban Baseball Auctions
- eBay
- Gaynor & Dent
- Goodwin & Co.
- Grey Flannel Auctions
- GSA Auctions
- Hakes Auctions
- Heritage Auction Gallery
- Huggins & Scott
- Hunt Auctions
- Imperial Sports Auctions
- Legendary Auctions
- Lelands
- MEARS
- Memory Lane, Inc.
- Mile High Card Company
- Old Judge
- Robert Edwards Auctions- REA
- SCP Auctions
- Sportslot
- Blowout Cards Forum
- Full Count Vintage Baseball Card Forum
- Netshrine
- Sports Card Forum
- Sports Collectors Social Network
- Vintage Baseball Card Forum: Net54
- Vintage Hockey Card Forum
- Vintage Non-Sports Card Forum
- Agate Type
- Back to Baseball
- Ballparks.com
- Ballplayer Agency Database, via MLB Trade Rumors
- Baseball Almanac
- Baseball America
- Baseball by Positions
- The Baseball Cube
- Baseball in Wartime
- Baseball Library
- Baseball Prospectus
- Baseball Recordings
- Baseball Reference
- Baseball Reliquary
- Baseball Think Factory
- Baseball Writers Association of America (BBWAA)
- Black Baseball
- Business of Baseball Pages
- Center for Negro League Baseball Research
- Cot's Baseball Contracts
- The Deadball Era
- Diamond Mines: Baseball Hall of Fame Honors Scouting
- Dressed to the Nines
- FanGraphs
- The Girls of Summer
- Japanese Baseball
- Library of Congress: Historical Baseball Resources
- Minor League Central
- National Sports Collectors Convention
- Negro League Baseball Players Association
- Negro League Legends
- Retrosheet
- Rotoworld
- SABR: The Baseball Biography Project
- SABR: Society for Advancement of Baseball Research
- Seamheads.com- Negro League Stats
- The Sporting Statues Project
- Sports Club Stats (Playoff Chances)
- Sports Logos
- USA Baseball
- Wikimedia Commons
- Alabama Sports Hall of Fame & Museum (Birmingham, AL)
- American Sports Art Museum (Daphne, AL)
- Babe Ruth Museum/Sports Legends Museum at Camden Yards (Baltimore, MD)
- Baseball Heritage Museum (Cleveland, OH)
- B's Ballpark Museum (across from Coors Field, Denver, CO)
- Bob Feller Museum (Van Meter, IA)
- BRS Museum- Bottomley Ruffing Schalk Museum (Nokomis, IL)
- Canadian Baseball Hall of Fame (St. Marys, Ontario, Canada)
- Chicago Baseball Museum (looking for a home)
- College Baseball Hall of Fame (website only- museum planned in Lubbock, Texas)
- Cooperstown Heroes of Baseball Wax Museum (Cooperstown, NY)
- Delaware Sports Museum and Hall of Fame (Wilmington, DE)
- Emmett Kelly Museum (famous Dodgers "Bum" clown) (Sedan, Kansas)
- Iowa Baseball Museum of Norway (Norway, IA)
- Kansas Sports Hall of Fame (Wichita, Kansas)
- Little League Baseball Museum (South Williamsport, PA)
- Louisville Slugger Museum & Factory (Louisville, KY)
- Mickey Vernon Museum (Media, PA)
- Museum of Nebraska Major League Baseball (St. Paul, NE)
- National Baseball Hall of Fame (Cooperstown, NY)
- National Italian American Sports Hall of Fame (Chicago, IL)
- The National Pastime Museum (online only)
- Negro League Baseball Museum (Kansas City, MO)
- Newport Sports Museum (Newport Beach, CA)
- Nolan Ryan Exhibit (Alvin, TX)
- The North Carolina Baseball Museum (Fleming Stadium, Wilson, NC)
- Oklahoma Sports Museum (Guthrie, OK)
- The Original Baseball Hall of Fame Museum of Minnesota (Minneapolis, MN)
- Play Ball Experience (Mesa, AZ)
- Roberto Clemente Museum (not open to public) (Pittsburgh, PA)
- Roger Maris Museum (Fargo, ND)
- San Diego Hall of Champions Sports Museum (San Diego, CA)
- Shoeless Joe Jackson Museum (Greenville, SC)
- Sports Immortals Museum (Boca Raton, Florida)
- Sports Museum of Los Angeles (not open to the public)
- Ted Williams Museum and Hitters Hall of Fame (Tropicana Field, St. Petersburg, FL)
- Ty Cobb Museum (Royston, GA)
- Virginia Sports Hall of Fame & Museum (Portsmouth, VA)
- Wichita Sports Hall of Fame (Wichita, Kansas)
- Yogi Berra Museum & Learning Center (Little Falls, NJ)
