Happy digital world: Everything is information, and it grows by sharing. Scarcity seems to be a problem of the "meatspace". On the internet, there is space for everybody, for every activity and for every opinion. Really? This lectures explores the power of intellectual property rights, the principle of net neutrality and surveillance issues and explains their impact on everyday (digital) life. The net as we know it is in danger. What is needed to make it stay a resource which is valuable, open and free for everybody? How could a concept of digital sustainability look like?