iRail is a UK based web directory dedicated to railways and model railways.

North American model railroad directory and search engine. Listings of manufacturers, hobby shops, and model railroad layouts.

Information about model railway trains, tracks and layouts, and links to affiliate retailers, personal pages, and other resources.

S-Trains offers pictures, sounds, diagrams and hundreds of links to S-gauge and S-Scale related sites. We have a weekly chat, bookstores and a mailing list.