William Lynch faced big Nook losses
                                
                                
                                    (Newser) -
                                    Shortly after  news of big losses  for Barnes & Noble's Nook, the company's CEO is exiting. William Lynch, named CEO in early 2010, had made the firm's digital business paramount, the  Wall Street Journal  notes, working on an array of Nook gadgets. Now, however, Barnes & Noble...