Free-to-use images from US National Archives
By Steve Hull on Tuesday 02 February 2010 Tweet this!
Approaching Logan Airport. 05/1973. Photo from U.S. National Archives on Flickr: The Commons. No known copyright restrictions.
As with all the collections on The Commons, the images are available to use with no known copyright restrictions.
Among the gems, you'll find over 200 landscapes by Ansel Adams and a selection of photos from the Documerica Project - the Environmental Protection Agency (EPA)'s document of environmental problems, EPA activities and everyday life in the 1970s.
There are many other historical photographs and documents - it's well worth a look.
"Top Women" at U.S. Steel's Gary, Indiana, Works, 1940-1945. Photo from U.S. National Archives on Flickr: The Commons. No known copyright restrictions.