textbook: "openly
copyrighted (copylefted) textbooks" - a nice idea, information wants to be free, but how will this impact authors? At least in Norway a lot of the local books are written by the professors, partially as a way to supplement their salary, partially to adapt the material based on their actual experiences with students - how to present the difficult subjects, how to create suitable examples..... would probably be good as a basis - add local variations, excercizes and so on.