It's time for a link to one of those controversial posts...a post that you'll either totally disagree with or you might find very enlightening. I'm talking about this one from David Meerman Scott entitled "Does a new literacy call for a new book model?" I read it and found myself wondering about the possibilities it could lead to.
I'm a bit skeptical that some of the elements from Zak Nelson's mock-up, which is included in that post, are viable. Nevertheless, if you take only one thing away from reading David's summary, remember this: We (publishers/authors) need to do a much better job of writing content for more than just the print medium. Too many books are being converted to e-content (for Kindles, iPhone apps, etc.) without even the simplest embedded links for cross-references and external references/resources. How stupid is that?