Thunderbolt and Lightning is a set of free WWII air combat rules.
Lightning War is a set of company level rules for World War II> Emphasis is on training and troop types.
Where Panzers Dare is a set of World War II rules based on Ty Beard’s Fistful of Tows Rules. Unfortunately, you have to join another of those Yahoo Groups to get them.
Code Guardian is a teriffic short film — done with computer generated graphics — about a giant Nazi robot’s attack on an Allied port.
Matakishi has some instructions with photos for making World War II era buildings out of sheets of cork.