Here is a terrific tutorial on making corn (maize) plants for your 28mm wargames. These are by far the best I’ve seen.
The Miniature Wargaming Editor
Weathering Metal Armor Tutorial
Kevin’s Miniatures and Hobby Table has a post on techniques for weathering metal armor. I’m going to use some of these techniques on my Lord of the Rings Orcs.
Painting British Infantry
Great Escape Games has a tutorial on painting WWII British Infantry.
SAGA Rohan Battleboard
A SAGA Battleboard for the Riders of Rohan from the Lord of the Rings
SAGA Gondor Battleboard
Tabletop Deutschland blog has a nicely done battleboard for Lord of the Rings Gondor forces.