Hobby Reference Links:
- 127 Sale - The World's Largest Yard Sale
- Adam Warshaw's Boxing Page
- American Numismatic Society
- Antique Sports
- Autograph Magazine
- Baseball Games: Antique Parlor Games
- Baseball Glove Collector
- Baseball Magazine - Digital
- Baseball & Tobacco
- Baseball Wrappers
- BaseballCardPedia.com
- Candy Wrapper Archive
- Card Shop Finder.com
- Cardboard Connection
- Carnival Glass - David Doty's Carnival Glass
- Casino Chip & Gaming Tokens Collectors Club
- Collectors Network (Sports Action Figures)
- Collectors Showcase
- CooperstownExpert.com (HOF autograph collection of Jim Smiley)
- Crave the Auto (Autograph Appearance Listing Service)
- Cycleback's Baseball Museum
- Cycleback's Print & Photographs
- Caramel Cards
- Cuban Baseball Cards
- David Doty's Carnival Guide Website
- English Football Cards
- Exhibit Cards
- Figure Realm (Action Figure Resource)
- Game Used Universe
- Leon's Type Card Collection
- Library of Congress: Baseball Cards, 1887-1914 - The Benjamin K. Edwards Collection
- Library of Congress: The Branch Rickey Papers
- Library of Congress: Spalding Baseball Guides 1889-1939
- The Muchinsky Collection (Baseball Pinback) blog: Baseball Pinback Buttons
- 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
- Pennant Fever - Felt pennant resource Pennant Factory - Site dedicated to homemade felt pennants
- Postcardy.com (postcard collecting)
- PriceRealized.com
- Product Information Sheets, via Magazine Exchange
- 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
- Soccer Card Index.com
- Sports Action Figure.com
- Sports Antiques
- Sports Card Blogroll (blogroll of just about every active sports collector blogs)
- SportsCollectors.net -- Sports Autograph Resource and Community
- Sports Memorabilia Museum
- TeamSet4U
- Ticket Stub Collection
- Topps Production Codes
- Upper Deck Sheets.net
- Vintage Ball
- Vintage Fashion Guild - Clothing & Vintage Fashion Guide
- Vintage Football Card Gallery
- Virtual Card Collection
- World Series Rings.net
- 1952 Topps Baseball Cards
- BillyRipken.com - Devoted to the infamous error card
- T205.org
- T206 Insider
- T206 Museum
- T206.org
- T206 Resource
- T3 Turkey Red
- AFA-Toy Graders
- BallQube Twitter: @BallQube
- Beckett Grading-BGS Twitter: @beckettmedia
- Beckett Price Guides Twitter: @beckettmedia Facebook: beckettmediallc Instagram: beckettmedia
- CGC-Comic Book Graders
- Collectors Universe- PSA Twitter: @PSACard Facebook: PSACARD
- Cryptozoic Entertainment - Non Sports Cards - Twitter: @Cryptozoic Instagram: cryptozoicentertainment YouTube: cryptozoicentertainmentofficial Facebook: cryptozoic Pinterest: cryptozoic
- Diamond Comic Distributors
- Funko - Pop Figurines
- Helmar Brewing Company
- Import Dragon Figures Twitter: @ID_Figures Instagram: id_figures Facebook: ImportDragonFigures
- In The Game Trading Cards Twitter: @InTheGame Facebook: ITGTradingCards
- JSA- James Spence Authentication Facebook: spenceLOA
- Leaf Trading Cards Twitter: @Leaf_Cards Facebook: LeafTradingCards
- McFarlane Figurines
- Panini America Twitter: @PaniniAmerica @PaniniAuthentic @PaniniPOD @PaniniCSM Facebook: ThePaniniAmerica Blog: Panini America Blog
- SGC
- Sports Collectors Digest
- Sports Speakers
- StockX - an online marketplace for sneakers, popular brands and now baseball cards
- Strat-O-Matic Twitter: @StratOMatic
- Topps Twitter: @toppscards @topps_support @BowmanCards @ToppsDigital @ToppsBUNT @ToppsFB @ToppsKick @ToppsHuddle Facebook: Topps Bowman Baseball Tumblr (redemption updates): ToppsCards Instagram: ToppsSports YouTube: ToppsConnections
- Tuff Stuff
- Upper Deck Twitter: @UpperDeckSports @UpperDeckHockey @UpperDeckEnt Facebook: UpperDeck Instagram: upperdecksports
- Brockelman Auctions
- Classic Auctions
- Clean Sweep Auctions
- Cuban Baseball Auctions
- eBay
- Gaynor & Dent
- Gold Card Auctions
- Goldin Auctions
- Grey Flannel Auctions
- GSA Auctions -- government related auctions
- Hakes Auctions
- Heritage Auction Gallery
- Huggins & Scott
- Hunt Auctions
- Imperial Sports Auctions
- Julien's Auctions
- Lelands
- MEARS
- Memory Lane, Inc.
- Mile High Card Company
- Old Judge
- Profiles in History
- Robert Edwards Auctions- REA
- Simple Auction Site -- start your own auction
- SCP Auctions
- ScreenBids
- Sportslot
- Blowout Cards Forum
- Clouts-'n'-Chara Forum
- Freedom Card Board
- Full Count Vintage Baseball Card Forum
- Pat Neshek's Everything Autographs Message Board
- Sports Card Forum
- Sports Collectors Social Network
- Vintage Baseball Card Forum: Net54
- Vintage Hockey Card Forum
- Vintage Non-Sports Card Forum
- 19th Century Baseball
- AAGPBL.org
- Agate Type - focused on the Negro Leagues
- Babe Ruth Central
- Back to Baseball
- Ballparks.com
- Ballparks of Baseball
- Ballplayer Agency Database, via MLB Trade Rumors
- Baseball Almanac
- Baseball America
- The Baseball Analyst
- Baseball by Positions
- The Baseball Cube
- Baseball in Wartime
- Baseball Metrics
- Baseball Outlaws: Focused the Carolina League in the 1930s
- Baseball Parks.com
- Baseball Prospectus
- Baseball Reference
- Baseball Reliquary
- Baseball Savant (pitch fx data)
- Baseball Think Factory
- Baseball Writers Association of America (BBWAA)
- Baseball's Greatest Sacrifice - dedicated to ballplayers who have lost their lives while serving in armed services
- Black Baseball
- Brooklyn Ballparks.com
- Brooks Baseball.net (sabermetric analysis)
- Business of Baseball Pages
- Cap Chronicled
- 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 - database of Baseball uniforms
- FanGraphs
- The Girls of Summer
- Home Run Tracker: ESPN
- Japanese Baseball
- Library of Congress: Historical Baseball Resources
- Minor League Central
- National Pastime (This Day in Baseball History)
- National Sports Collectors Convention
- Negro League Baseball Players Association
- Negro League History
- The Physics of Baseball
- Pitch Black Baseball (Negro Leagues)
- Protoball - Documenting pre-Civil War Baseball games
- Retrosheet
- Rotoworld
- SABR: The Baseball Biography Project
- SABR: Society for Advancement of Baseball Research
- SABR: Research Link
- Seamheads.com- Negro League Stats & Ballpark Info
- Stadium Journey - Info on just about every sports venue in country
- Stadium Parking Guides
- The Sporting Statues Project
- Sports Cartooning
- Sports Club Stats (Playoff Chances)
- Sports Logos
- Spring Training Connection
- Stadium Journey
- Today in Baseball History
- 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)
- Darvish Museum - Space 11 (Kobe, Japan)
- Delaware Sports Museum and Hall of Fame (Wilmington, DE)
- DePace Sports Museum (Collingswood, NJ)
- Emmett Kelly Museum (famous Dodgers "Bum" clown) (Sedan, Kansas)
- Green Diamond Gallery (private gallery - Montgomery, OH)
- House of David Museum (Benton Harbor, MI)
- Iowa Baseball Museum of Norway (Norway, IA)
- Japanese Baseball Hall of Fame and Museum (Tokyo, Japan)
- 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 Art Museum of Sport (Indianapolis, IN) (not open to public)
- 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) Twitter: @nlbmprez
- Negro Southern League Museum (Birmingham, AL)
- Newport Sports Museum (Newport Beach, CA)
- Nolan Ryan Exhibit (Alvin, TX)
- The North Carolina Baseball Museum (Fleming Stadium, Wilson, NC)
- Oklahoma Sports Hall of Fame (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 (open to the public only on weekends)
- 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)