When attending the Symposium of the Future of Textbooks last week, I was reminded of exceptions to the rules I just stated. Cable Green did an amazing presentation (as he always does) on open education. His slides punctuated his presentations. Of course, his slides are available for re-use and re-mixing with the Creative Commons license. The link to the slide presentation he did last Thursday evening is at http://www.affordablelearninggeorgia.org/documents/Cable_EveningPlenaryKeynote.pdf
On Friday, David Wiley, was the opening plenary speaker. He spoke on affordable education.
His slides are also available for re-use and re-mixing with the Creative Commons license. The link for his slides is at http://www.affordablelearninggeorgia.org/documents/Wiley-ALG-UGA.pdf
I suggest that you take a few moments to review the slides from the links above. Notice, that they were used to supplement presentations. Both presentations were outstanding. If you have an opportunity to hear with of the presenters - do just that.