Terragenesis has an illustrated article on the construction of a beautiful elven house for 28mm gaming.
modeling
Making Wooden Crates
Terragenesis has a good illustrated article on making wooden crates for 25mm / 28mm gaming.
Making Miniatures With Shrinky Dinks
Make magazine (I subscribe — it’s one of the coolest magazines ever) has a blog post on making miniatures out of Shrinky Dinks.
Making A Rustic Village
Terrain Thralls has an instructive illustrated article on building a rustic village of little round huts.
Building Miniature Wargaming Trench Scenery
Ironhands has a nice photo tutorial on building a trench system for your miniature wargames.