eBooks - an awfully big adventure?

I've written before about An Awfully Big Blog Adventure (sub-titled The ramblings of a few scattered authors, which more or less describes it). In one of the most recent posts, ePositive, Elen Caldecott (author of How Kirsty Jenkins stole the elephant) writes about an event she went to where some writers expressed concern about the impact of the digital revolution on the book world. Elen sees this as a positive though, and gives some interesting examples of writers using new technologies to expand the world of their stories. For instance, Rose, one of the charcters in Hilary McKay's Casson family books, has her own blog. Caldecott likens websites like these to the extras on a DVD - it's an interesting idea.