The site is free to everyone and has thousands of historical photographs. For instance, the photograph shown above was contributed by the Rutherford B.Hayes Presidential Center. It was taken in 1916 by Colonel Webb C. Hayes, son of President Rutherford B.Hayes. It shows native peoples on the Tanana River in Alaska and the description states "the Colonel was on a trip exploring Alaska and the Yukon with his two 18 year-old nephews Dalton Hayes and William Hayes. ...it is a beautiful portrait of a traditional family within a cultural group that probably had very rarely been photographed at this point. The caption accompanying the photograph tells that there were 'lines of drying salmon hanging up and some caribou and bear skins.'”
You can click on the above thumbnail to view a larger image.
Of course, photos are contributed by individuals and organizations alike. Here is one that appeals to me because it is a meeting hall where my ancestors lived for several generations. I am sure my ancestors saw this building frequently and probably were inside it many times as well:
This is a picture of the Memorial Hall on East Main St, Dover-Foxcroft, Maine, as it appeared on 27 September 1923.
The HistoryPin web site has thousands of other old photographs and you are encouraged to add old photos that you have digitized from family photo albums and elsewhere.
HistoryPin was developed by the not-for-profit company We Are What We Do, in partnership with Google.
You can view the photographs and learn more at http://www.historypin.com.
My thanks to newsletter reader Holly Hendricks for telling me about this great resource.