Archeology 2.0

While going through my tweets today, one of my friends from college who is an archeologist, tweeted about an app, Pupil,that can be used to identify artifacts.  First, you take a picture of the item.  Then tag the picture, and submit it to the users of the app and they can work together to try to identify your item.  

However, this is not necessarily for archeologists.  It can also be used to ask, "Where can I buy these boots".  Plans are to put it on the web, but you can invite friends to join Pupil via email on the app.