in reply to
"The web is not print"
you may be interested in the miracles of XML and XSLT. O'reilly's has excellent books on both of them, and you can get the supa-fly peacock shirt in some cases.
Most people are familiar with an use XML as a data record format, but it can be used to create 'normal' documents, ala DocBook.
In the XSLT book, ISBN 0596000537, the author (Hi, Doug!) presents an incredible case study called the 'toot-o-matic' which takes a source XML document and produces :
- Hierarchical HTML forms
- Hyperlinked PDF files in a variety of print formats
- Prepackaged Zip archives for offline storage
This is a heavyweight example, but the book provides excellent and thorough explanation of the XSLT syntax, and how to perform different manipulations on a single document.