Modelrailwaylayoutsplans.com Share tips and layouts with fellow enthusiasts.
HO Scale Layouts – A stunning collection of HO scale layouts
N scale layouts – And a stunning collection of N scale layouts too
Railserve.com. The biggest collection of train links on the web. A fab site.
Scarm.info. Track planning software for your model train railroad.
Anyrail.com. Almost free track planning software (and the one I use).
modelrailroadlayoutsandscenery.com. Model railroad scenery that you can print out.
Freetrackplans.com. More free layout plans than you can shake a stick at.
Atlas track planning software. Does what is says on the tin.