Barnes & Noble’s Missing $500 Million; A Discrepancy Between Physical and Digital Property Values Tom Gara reports at The Wall Street Journal Corporate Intelligence blog that "UK-based publisher Pearson bought into Barnes & Noble's Nook Media digital business today [12/28/12], buying a 5% stake in the e-book company for $89.5 million and valuing the whole business at just under $1.8 billion. ...