What is Epub3?(https://www.amazon.com/gp/digital/fiona/thank-you?ie=UTF8&offerListingID=uDDt1C4p4ug07YlXs%252BrPg8QbPQEVa8xz8KltZ7MSPQVFaMvptUf55Gs%252BI742DoU0x8LabskHj8HXK17Unq9SVJxbunVAzrj7pvzCLgoHyVEnOmjPTH71WQvgSNUEu4uSwhwtIF2M%252BYAlkBtAiH5C7Q%253D%253D&o=D01-8912149-2387129&eoi=A2P7K0FIC6DH4V&asin=B005XE2CHC&cor=US) at Amazon. Ebook empowerment with EPUB3(http://radar.oreilly.com/2011/07/epub3-enhanced-ebooks.html) The line between book and Internet will disappear(http://radar.oreilly.com/2010/09/beyond-ebooks-publisher-as-api.html) - The inevitability of truly connected books and why publishers need APIs.
Find all the ebook specifications and their readers (gadgets, devices) in both US and Korea.