The first two are presentations that I gave yesterday.
They are both produced in Prezi, a tool that if you haven't yet tried, you should.
e-books: the state of play, barriers & challenges
Virtual Worlds: why we need to allow SL access in our libraries
A Scholar Gets a Kindle and Starts to Read
James J. O’Donnell, Provost as well as Professor of Classics during Georgetown University, talks about a intensity of e-books as well as e-readers.
An interesting talk where he talks about his needs as a scholar, and how e-readers, the Kindle in particular (because that's what he's been using), are like a paprus roll, giving linear access to text. He says all the current e-readers have selected a form of reading that is old-fashioned, and not what the modern scholar needs. They are better for "ludic reading" - reading for pleasure - rather than academic.