As promised we put some of the slides online, Valentin has used at his talk at the conference "Think Cross - Change Media" at University Magdeburg-Stendal.
Video slide 8: http://www.youtube.com/watch?v=LQnQWdrXNMk
Video slide 9:
The slides are in no way self-evident for people who have not attended. And some of the little text it includes is in German.