This one is a good one, all the examples are un-expected and tell the power of mass collaboration very well. Got to say it was also refreshing that it was British based oppose to the usual American perceptive. Its also told with most of its content being available online using a creative commons licence like BBC R&DTV or even Digital Revolution. There's also a load of people involved in and around this video which had me pointing at the screen and saying I wondering what happened to them. Well worth downloading and checking out, or you could even buy the DVD if you really enjoy it a lot.