By David Wogahn There seemed to be a sigh of relief the last few months of 2012 as the trade publishing establishment trumpeted the slowing growth of e-book sales. It may indeed be slowing, but the pain of adjusting to new economies of scale, changing consumer habits, technology adoption and lack of business model options are even bigger threats to the independence of large traditional publishers. The digital revolution has had an undeniable impact on how businesses operate. Costly technology and complex analog media production (music, publishing, film) are no longer the purview of large organizations. With lower technology costs and easy...