Talk at the opening of the International Conference on Methods and Technologies for Learning at the Palazzo dei Normanni, Palermo, Sicily. Unfortunately rushed, my talk wasn't everything I had hoped, though people were kind enough to say nice things afterward (including one who, after seeing the slides, said it's a talk I should give in full one day). Still, here are the slides and the MP3 of Learning Networks (3.3 megabytes).
Lecture, Mar 09, 2005.