Flutterby™! :

I hadn't realized that Literary Machines is still in print! If you play with hypertext or information design it's a must read, there's a discussion on discuss.scripting.com about Ted Nelson's critique of embedded markup that wouldn't be happening if any of those rambling on and on had actually read the work that made me (and many others) see both the promise of the WWW and the failures made by inherent design decisions in both HTML and HTTP.