When is a Long Document Not a Long Document?
http://www.webpagecontent.com/arc_archive/169/5/

McAlpine, Rachel
Quality Web Content
2005

Abstract:

Change is upon us, whether we like it or not. HTML is the default technology for accessible documents online according to the W3C and most government standards. That means goodbye to the easy solution of flinging scores of long documents on to a web site as Word or PDF files.