I just happened to check my google RSS reader a few weeks after the initial session and I got a pleasant suprise when I checked the powerhouse museum's photo of the day feed. I found this excellent link to a mash-up (Im excited about mashup's before we have even got to that week's installment) (you will need to copy and paste this link into your browser).
http://www.powerhousemuseum.com/dmsblog/index.php/2008/08/27/flickr-meets-google-street-view-paul-hagons-then-now-or-interesting-things-clever-people-do-with-your-data-6247
Credit for bringing this information goes to Paul Hagon (http://www.paulhagon.com/) and Seb Chan (http://www.powerhousemuseum.com/dmsblog/).
Its a mashup between a flickr collection and google streetview. Where on the left you see a photo of a building that is quite old, and the location of it, and on the right you can see the current google street view of the location/building of how it looks in the 21st century, great!.
