http://www.anyrail.com/index_en.html

AnyRail makes model railroad design so easy, it's fun!

With AnyRail you can design your own layout

AnyRail™ is probably the easiest-to-use model railway design tool around. It's also entirely independent, so you can build with almost any track. Enjoy designing your layout - AnyRail ensures everything fits

TrainTrax v2.0

TrainTrax is an easy-to-use cataloging and organizing system for the model railroader. You can record up to 16 fields on each model (model and prototype information, and various notes).

http://www.paperbuildings.happyllama.com/

This site is intended for those people who like to build
(and even better: design) paper models of houses and buildings.

http://www.gatewaynmra.org/download.htm

You can download and print these "metal" signs for your building exteriors.

http://www.greatbuildings.com/model_viewing_notes.html

http://www.newrailwaymodellers.co.uk/Scenery/Buildings.htm

NRM - The model railway website dedicated to beginners and those returning to the hobby, with basic and advanced model railway information on all aspects of the model railway hobby