J. Murry Inc. - Great reference for M1 series helmets worn by American soldiers, marines and airmen during World War II.

Olive-Drab - Great site for all things World War II. Primary focus is on American soldiers and equipment.

Saving Private Ryan Online Encyclopedia - A great reference site for World War II and particularly for things seen in the Academy Award-winning production directed by Steven Spielberg and starring Tom Hanks.

MemorablePlaces.com Presents the M1 Garand Rifle - Nice site focusing on what General George S. Patton, Jr. called it "the greatest single battle implement ever devised by man."

World War II Poster Collection - Administered by the Northwestern University Library, this is a great collection of the artful and nostalic pursuit of the war's printed propaganda.

Lone Sentry - Photos, articles and research focusing on the European Theater of World War II.

Captains Courageous Military Uniforms of WWII - A great reference site for details of officers' uniforms in World War II. It includes Allies and Axis as well. It is part of the great Digger History family of sites.