WWII in Color website has the Internet's largest collection of rare color photographs from World War II. This one above is a signed photo of the Flying Tigers in China.
Flying Tigers was a volunteer group of pilots and ground crew, recruited under a secret presidential order by Roosevelt to fight Japanese forces (under disguise that they're part of the Chinese Air Force) before Japan attacked Pearl Harbor.
Link - Thanks Algonkin!
See also the story about the Flying Tigers here: The Truth About Pearl Harbor.
Gordon
My website, World War II Database, also has a large photo repository. The link is this:
http://ww2db.com/photo.php
At the time of this writing, there are 4,788 photos, 620 of which are in color.
Hope you'll enjoy my site as much as Nick's!