I will be adding links to this document over the next couple of weeks. If you see an unlinked reference in the document to useful material existing online, please let me know, and I'll have a look at it. It provides a history of the development of the form, discussions of key terms and concepts, and reviews of many PC and Macintosh-based authoring systems. The emergence of hypertext is placed in the context of the literary tradition of non-linear approaches to narrative, such as those employed by Cortazar, Nabokov, Borges and Pavic. This is the preferred format, since it is the only one which preserves the hypertext structure of the document.
Binaries exist for various platforms.
I'm playing with configuration of the Harmony client right now. Hacker Dictionary I am currently compiling this hypertext dictionary.