Here are some links to help modellers. We will post useful links here from time to time.
A tour of the Bar Mills Scale Models shop
Simulating rust on corrugated metal
Not a model, not a railway - but the delightful Beamish museum
How to build a static grass appplicator
Scratchbuilding with card - tools and materials (Chandwell)
Inkscape - Draw freely; a free open source vector graphics editor
Weathering clapboard (weatherboard) walls
Weathering steam locos - Darryl Huffman