Get excited, because this is really, really cool, and it launches today.

Historypin is a website that enables users to upload their own historical content – of any kind – and then tag it on Google Maps. It is then geo-cached and dated. You can layer historical streetviews over existing streetviews – or see the layers of history in a particular house.

Early stages of the project look to be a huge success, and it’s already received awards for its social networking capabilities for the nonprofit world. Historypin was created by We Are What We Do, a non-profit company that works on social issues by creating tools that can shift mass behavior.

Stay tuned here at the Tufts Museum Studies blog; we’ll be doing a more in-depth review of the site and, we hope, some interviews with its creators.