Life Magazine Photo Archive
Google Image Search now includes the photo archive from Life Magazine. Life was known for its photographs and its great that we can see these photos. They span the 1860s and the Civil War through the 1970s and Mohammed Ali and Joe Frazier.
You can limit your search to just the Life photos by adding “source:life” to your keywords. There is also an option to purchase framed prints of these images (at least all that I saw). I did not see any statement of use, so I am assuming we can at least use them for non-commercial purposes. If anyone finds one, please let me know.