The assignment was to capture your screen while you played with Google Earth or Second Life... I chose Google Earth and explored São Paulo, New York, and Tokyo observing how much information exists and the level of detail inputted into the system by users.
I was actually surprised at the amount of information São Paulo has - I was expecting that of NY for obvious reasons - and then was surprised (ok - not so much) at how detailed the 3D buildings in Tokyo are.
At the end I played around with the flight simulator in Google Earth (ctrl+option+a)