What was there?

Here's an interesting project that extends the Museum of London Street Museum application to map historical photographs through crowd sourcing. I suppose ideally it would balance individual and institutional data, but open source projects can be limited by copyright restrictions and the occasional insular archive. Hopefully it will become a really useful resource.

http://whatwasthere.com/

There's also a free app for iDevices if you're that way inclined:

http://itunes.apple.com/us/app/whatwasthere/id421576457?mt=8&ls=1

Augmented Reality

The Museum of London have recently brought our their own iPhone app called Street Museum that uses geo-tagging and augmented reality to overlay images from their archive in real time and space. Seems like it could have interesting implications for diffusing museum collections and content, and it's free!