This video has some good tips for making industrial scatter terrain for your wargames. Proper scatter terrain makes a huge difference in teh visual interest of a gaming tabletop.
Modeling
Modeling Wooden Yard Fences
Here are some good instructions for building modern wood yard fences.
Sudan Redoubt
If you are playing miniature wargames set in the Sudan, you’ve got to have a redoubt. Steve Winter has a very detailed explaination of how to build one.
Printing and Basing Paper Soldiers
Matt Fritz has some advice on printing and basing paper soldiers for your miniatures wargames.