Manufacturers/Vendors
- Accurail
- American Model Builders
- Athearn
- Atlas
- Bachmann
- Badger Airbrush
- Bowser
- Broadway Limited Imports
- Class One Model Works
- Digitrax
- Great Decals
- Greg Scholl Video Productions
- InterMountain Railway Co.
- Kadee
- Kato USA Inc.
- LGB
- Lionel
- McMillan Publications
- Micro Structures
- Micro-Trains Line
- Microscale Decals
- Miniatronics
- Model Railroader Magazine
- Model Rectifier Corp. (MRC)
- Moloco
- Morning Sun Books
- Piko
- Plastruct
- Precision Scale Company
- ProtoPowerWest/A-Line
- Railfan Magazine
- Railpace Magazine
- Rapido Trains
- Rivarossi/Hornby America
- Rix Products
- Scale Trains
- Sunset Models/3rd Rail
- Tangent Scale Models
- Testors
- The Coach Yard
- Train Control Systems
- Trains Magazine
- Tru-Color Paint
- Walthers
- Woodland Scenics
Museum/Tourist Railroads
- B & O Railroad Museum
- Big South Fork Scenic Railway
- California State Railroad Museum
- Cass Scenic Railroad
- Cincinnati Railway Company
- Colorado Railroad Museum
- Cumbres & Toltec Scenic Railroad
- Cuyahoga Valley Scenic Railroad
- Dennison Railroad Museum
- Durango & Silverton Railroad
- Grand Canyon Railway
- Hocking Valley Scenic Railway
- Illinois Railway Museum
- Indiana Transportation Museum
- Mad River & NKP Railroad Museum
- Minnesota Transportation Museum
- Napa Valley Wine Train
- Oklahoma Railway Museum
- Potomac Eagle
- Royal Gorge Route
- SAM Shortline Excursions
- San Diego Model Railroad Museum
- Steam Into History Northern Central Railway
- Steamtown
- Strasburg Rail Road
- Sugar Express
- Tennessee Valley Railroad
- Verde Canyon Railway
- Virginia Museum of Transportation
- White Pass & Yukon
Organizations
- AC & Y Historical Society
- ACL & SAL Historical Society
- American Association of Private Railroad Car Owners
- Amtrak Historical Society
- Associated Model Railroad Engineers of Coshocton
- Baltimore and Ohio Railroad Historical Society
- Burlington Route Historical Society
- Central of Georgia Historical Society
- Central Ohio Model Railroad Club
- Central Ohio Ntrak
- Chesapeake & Ohio Historical Society
- Chessie System Historical Society
- Chicago North Western Historical Society
- Cincinnati Railroad Club
- Cleveland Union Terminal Collection
- Columbus Garden Railway Society
- Cotton Belt Railway/St. Louis Southwestern Railway
- Detroit Toledo & Ironton Modelers
- Friends of the Burlington Northern
- Friends of the East Broad Top
- Great Northern Historical Society
- Hocking Valley Model Railroaders
- Louisville & Nashville Historical Society
- Milwaukee Road Historical Association
- Missabe Railroad Historical Society
- Missouri Pacific Historical Society
- National Model Railroad Association
- National Railway Historical Society
- National Retail Hobby Store Association
- New Haven Historical & Technical Society
- New Mexico Steam Locomotive & Railroad Historical Society
- New York Central System Historical Society
- Nickel Plate Road Historical and Technical Society
- Niles Depot Historical Society
- Norfolk & Western Historical Society
- Northern Pacific Railroad Historical Association
- Orrville Railroad Society
- Pacific Electric Railway Historical Society
- Penn Central Railroad Historical Society
- Pennsylvania Railroad Technical and Historical Society
- Pere Marquette Historical Society
- Pittsburgh & West Virginia Historical Society
- Railroad Station Historical Society
- Reading Company Technical & Historical Society
- Rio Grande Modeling & Historical Society
- Santa Fe Railway Historical & Modeling Society
- Soo Line Southern
- Southern Pacific Historical and Technical Society
- Spokane Portland & Seattle Historical Society
- St. Louis Chapter NRHS
- Union Pacific Historical Society
- Western Pacific Historical Society
Others/Misc
- Age of Steam Roundhouse
- American Steam Railroad
- Appalachian Railroad Modeling
- ATSF Railway Subjects
- California Zephyr
- Canada Southern Railway/NYC
- Chesapeake Bay & Western Colorado
- Colorado Unit Coal Trains
- Columbus Railfan Online
- Columbus Railroads
- Conrail Cyclopedia Depot Maps
- Cooke Road Train Crew (Columbus)
- Dome Cars (DOMEmain)
- Don Winter Train Trips
- Fallen Flag and Shortline Railroad Photos
- Friends Of 4449
- Fullerton Webcam
- Golden Spike Tower and Visitor Center
- How to Solder Metal
- Jim Lancaster's Railroad Web Pages
- Karl's Railroad Pages
- Milwaukee 261
- NKP 765/Ft. Wayne Railroad Historical Society
- Ohio Railroad Stations
- Oregon Rail Heritage Foundation
- Passenger Car Photo Index
- Pere Marquette 1225/Steam Railroading Institute
- Protect Your Model Trains
- Railpictures.net
- Railroad Airhorn Guide
- Railroad Historical
- Railroad Infrastructure
- Railtrip
- Railway Mail Service Organization
- Santa Fe 3751/SBRHS
- Southern Railway Forum
- SPS 700
- Steam In Ohio
- Steam Locomotive dot com
- Streamliner Schedules
- The Pullman Project
- The Railfan Network
- Trainorders
- Trainweb
- Wheeling & Lake Erie Railfan Page
Railroads
- Alaska Railroad
- Altamont Commuter Express (California)
- Amtrak
- BNSF Railway
- Caltrain (San Francisco)
- Camp Chase
- Canadian National
- CP Rail
- CSX
- Genessee & Wyoming
- GO Transit (Toronto)
- Indiana Railroad
- Kansas City Southern
- MBTA (Boston)
- Metra Rail (Chicago)
- Metro-North or Long Island Railroads
- Metrolink (Los Angeles)
- MTA/MARC (Maryland)
- Music City Star - Nashville
- NCDOT Rail Division
- New Mexico Rail Runner
- NJ Transit (New Jersey)
- Norfolk Southern
- North San Diego County Transit
- Ontario Northland
- Reading Blue Mountain and Northern
- Seattle Sounder
- SEPTA (Philadelphia)
- Shore Line East (Connecticut)
- Transtar Inc Railroads
- Tri-Rail (South Florida)
- Trinity Railway Express/DART (Dallas)
- Union Pacific
- VIA Rail
- Virginia Railway Express
- Watco Companies
- West Coast Express (Vancouver)
- Wheeling & Lake Erie