The Tabletop Terrain blog has a useful article on using vinyl/linoleum tiles to make roads appropriate for a combat zone or post-apocalypse setting.
modeling
How To Make Craters
This video tutorial teaches a technique for making craters. It’s a useful thing for modern, post modern and full-blown science fiction games.
Miniature Village of Bourton-on-the-Water

Amusing Planet has a terrific series of photos on the miniature village of Bourton-on-the-Water in England. Imagine playing wargames with action figures in this one.
The best part of it is that, since the one of the houses in the actual village has the miniature village in its backyard, the model also contains a miniature village. And in that miniature village is a house with the miniature village. And in that miniature village …
It zooms down to 5x.
Wow.
Texturing Wargames Scenery Bases
Following up on a previous tutorial on making a gloop to apply texture to terrain, The Terrain Tutor vlogs on additional texturing options.
How To Make Terrain Gloop For Texturing
In this tutorial, white glue, sand, water and art plaster to make a gloop for texturing terrain pieces.