When the Harry Potter books finally went on sale in electronic form on Tuesday, it was as if Harry himself had cast the “Alohomora” spell on them — the one that unlocks doors.
Barnes & Noble is launching a lighter, slimmer, cheaper version of its e-reader for $139 — a sign that the book retailer is ready to compete on price with rivals Amazon and Borders.
Amazon.com Inc. on Thursday said that, after less than four years of selling electronic books, it’s now selling more of them than printed books.
Barnes & Noble is adding an applications store and an email program to its Nook e-reader. That brings the $249 device closer to working like a tablet computer in the vein of the iPad.
Google Inc. is making the leap from digital librarian to merchant in a challenge to Amazon.com Inc. and its Kindle electronic reader.