I enjoyed this Tedx talk by Donald Clarke from the University of Glasgow with the title "More pedagogic change in 10 years than last 1000 years" - very relevant to open access knowledge too - video at http://www.youtube.com/watch?v=dEJ_ATgrnnY (I agree with him that e-learning is the way to go, since it frees us from the tyranny of time and location, and is often much more affordable!)