When you think of your favorite bookstore, what comes to mind? Is it the physical space? Books stacked in rows and piled high, labeled with staff recommendations? Do you think of the owner who knows each of her customers by name and can always press into your hands the perfect book that you are sure to love? Or is it the intangible thing that draws you there: the anticipation of a new discovery, or the feeling of community or of being at home? The...