I'm playing with Evocam. The image that you see is captured in real time. A motion detector analyzes the camera signal and saves a jpeg file every time anything happens on the screen (meaning: I move). This won't be updated for long I think, but so far is cool.

PS: I switched the camera off, tomorrow is a national holiday in Italy and I won't be back until Monday. Leaving the camera on in a dark and empty office doesn't make much sense. Now you can stop reloading this page