Ebooks can become rich collections of resources incorporating text-crunching computation. Here's an example using Shakespeare texts.
Why a 17th-Century Text Is the Perfect Starting Point for Reinventing the Book
http://www.theatlantic.com/technology/archive/2012/09/why-a-17th-century-text-is-the-perfect-starting-point-for-reinventing-the-book/263034/
Why a 17th-Century Text Is the Perfect Starting Point for Reinventing the Book
http://www.theatlantic.com/technology/archive/2012/09/why-a-17th-century-text-is-the-perfect-starting-point-for-reinventing-the-book/263034/
