The arrival of digital books through Kindles, Sony e-Readers and the iPad raises all kinds of questions about the functions of digital books, given the possibilities for interaction. Some thought is being given to this at a general level; see
Nine Important Trends in the Evolution of Digital Textbooks and E-learning Content
Nine trends that we’re currently tracing with regards to digital content in Higher Education. These are the critical trends that we believe will determine both growth and innovation in this market.