Alan Thomson Simulation – One stop shop for Train Simulator downloadable content, routes, scenarios, reskins, patches mods and user generated free, subscription and payware Train Sim addons.
Microsoft Train Simulator - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game
Train Sim World - Mod Tutorial - BNSF AC4400CW - First Mod Ever! (Old Way) - YouTube
The Train Sim Corner - Just a general reminder for all developers, the new TSC Mods site now accepting mods from any Train Simulation Related Game. If you are a mod developer