North American’s P-51 Mustang Fighter is in service with Britain’s Royal Air Force, N[orth] A[merican] Aviation, Inc., Inglewood, Calif. (LOC)

Originally uploaded by The Library of Congress.

The Library of Congress has started a project with Flickr to label, comment and tag hundreds of photos in their collection. The photos are in the public domain (most) and are available on their site. This is the first time a large public collection is using social tools to catalog photos.