Today I met a friend at the university and we started discussing knowledge-building within the field of physics. I've been thinking about creating some kind of virtual physics-teacher/tutor/referencework as my Degree project. Ideally, I would create the infrastructure or backbone needed to enable anyone to contribute to the work in an open-source manner. However the idea is just fresh, and not yet investigated in detail. I believe the hard task is to create a flexible but yet simple environment for both learning and contribution.