Books in the Digital Era

Hypertext is basically information that is within a network of non linear structure.
The term "hypertext" was coined by Ted Nelson, who defined it in his self-published Literary Machines as "non-sequential writing". The hypertext is connected via hyperlinks to each other. It is the net that houses all of this.
It was mentioned in the study guide that Paper based hypertext could take the form of an encyclopedia. If this is the case then dictionaries would also fall into this category. What about pick a path books? recipe books?
Lots of different elements can be linked electronically using hyperlinks.... video, imagery like photos, animation, songs and music, interactive pages for games etc... can be linked which have a flash element to them, apps for iPhone..... it's ever growing.
The 'Electronic Labyrinth' reminds me of Wikipedia. I think the body of work is unstable.... its constantly shifting and there is no traditional 'standard'. But.... it is of the times. It does facilitate a helpfully quick method in which to find information. It is book-like in the sense that it has text which informs and delivers a message. But that is about where it stops for me. It has no paper. I must read it vertically in front of my face. There are no pages to turn. It is hard to get into a rhythm of reading when it constantly changes and so quickly too. It's distracting.
I think the physical form of the artists book could be used to create hypertext and hypermedia. Look at Tom Phillip's. He has uploaded his artist's book of 'Humument' and has an option to view this amazing work as a slide show. This displays his book, and flips through the pages, as though you were reading it. This motion imitates the same act as when we read a paper book, turning the pages..... it is more enjoyable and more book-like through this technique. What about blogs though? Are they not some form of artists book? Mine perhaps is not, but there would be others that are.