Presentation examining the logic and underpinnings of free and open educational content. English with Spanish translation throughout. An extensive presentation, with almost entirely new material, drawn from the influence of this Argentine city, the influence of Canadian thinking in media and education, and the principle of association that underlies connectivist epistemology and pedagogy. The presentation and lengthy Q&A runs at a bit more than two hours. I am very happy with this presentation, and even better, have a video version, which I will format and release as soon as I can. (Update October 4, 2016 - haven't found the video).Lecture, Apr 29, 2010.