I saw a video by Michael Wesch today which is worth a watch. He is the guy who put together The Machine is Us/ing Us. It is called 'A Portal to Media Literacy' and examines assumptions about information and how students get meaning from their education and how they can make meaningful connections.
The video is just over an hour long so you need to set aside some time to watch it. In the video he talks about a project he does with his students and there is also a video about that: 'Twitter and the World Simulation". This is only about 4 minutes long.