Last week's release of the Amazon Kindle Paperwhite offered an opportunity to look back on the rapid growth of e-reading, and look forward to what the digitization of publishing will mean to four major market forces: publishers, bookstores, authors and readers. As during any technological disruption, winners and losers trade fates until the upheaval settles and a new cycle of status quo begins. Amazon is not the only bookstore represented in the scramble for new-era survival, but its major role has multiple dimensions: seller, publisher, enabler, inve
