Pigs and Glory is a set of free wargames rules for Viking Saga Campaigns. It is designed to give some context to period battles.
Making A Model Wooden Cart
The Lazy Forger has a tutorial on making a model wooden cart.
Modeling An Iroquois Longhouse
This photo tutorial offers great instruction on modeling an Iroquois style Indian longhouse.
1862 Campaign Rules
1862 is a set of American Civil War Campaign Rules designed for Johnny Reb, but which could be used with any miniatures rules set.
Sculpting An Urban Wall
A nice tutorial on sculpting and then making a mold of an urban wall.