Amazon announced this morning that sometime later this year, Kindle owners and Kindle app users will be able to check out its e-books from local libraries. The service will enable users to highlight and add notes, just like they do in Kindle books they buy. Those notes won't be visible to others who check out the book, but if you check it out again or buy it, the notes will still appear. Staci Kramer describes the significance: "The company wants people to see the Kindle as a reading device and the apps as a reading platform, not an Amazon-purchase-delivery system." || Related: Plenty of unanswered questions about how much control libraries will have over e-books.