Heads up e-book readers: if you were fast enough yesterday you may have seen that Amazon is preparing to launch an e-book subscription service. Maybe. A page on its website was put up, and then taken down again, very quickly. The service, called “Kindle Unlimited,” would give subscribers access to 600,000 books for $10 a month. – Sally Herships, Marketplace http://ift.tt/1svdL9y