Howard Hughes Biographical Sketch - provides biographical sketch of Howard Hughes, examining his work in aviation and film.
Howard Hughes the Innovator - brief bio from American Heritage Magazine.
Howard Hughes: A Man of Dreams and Action - about the life and contributions of this enigmatic character.
Las Vegas SUN: Hughes Almost Got Nuke Bomb Designs - from the Las Vegas Sun.
Official Spruce Goose History Page - history of the HK-1 from the Captain Michael King Smith Evergreen Aviation Education Center, current home of the Hughes Flying Boat.