The International Herald Tribune just published a good roundup of the digital developments that are reshaping book publishing.
Reporter Eric Pfanner starts with Google's recent deal with American authors and publishers allowing the company to sell electronic versions of titles that are out of print. That covers most of the world's books, he points out.
making what may be the biggest technological leap since Gutenberg
invented the printing press."
He goes on to survey predictions of digital sales, trends among suppliers and consumers of mobile readers, and digital programs undertaken by European libraries.