People Staring at Computers by Kyle McDonald:
I wrote a simple application that took one picture every minute. If it found a face, it uploaded the photo to my server. I installed the app around NYC over three days, collecting more than a thousand photos.
Before sharing the photos online, I decided to exhibit them in the same places they were originally captured. So I wrote another app that could be remotely triggered after being installed on all the computers in one location. When the app starts up, it takes a picture and slowly fades in that photo. A moment later, it starts cycling through older photos.