Integrating historic photos into online image repositories

Image from Good Magazine.

Good Magazine has a piece on HistoryPin, "Picture the Past: Historypin Mashes Up Archived Photos with the Present" which is pretty interesting. From the article:

Google Maps Street View can already make you feel like you're in two places at once—the desk where you're physically sitting and the street that you're digitally exploring. A new app and website, Historypin, translocates you one step further, enabling you to experience places around the world at distinct moments in the past. Use the free website to mash-up the street view of today's Times Square with the Times Square of the 1930s. Or, with the smartphone app, you can wave your phone through the air to see layers of historical photos superimposed upon wherever you happen to be.