To HTML or Not: What Are the Questions? 
With the advent of the World Wide Web (WWW), HTML has become a viable way of putting information online. But, is it always the best way? For interactive multimedia presentations, HTML is not always the best choice. You have to consider the need for platform-specific file formats, the limits of Web browsers, and the lack of comprehensive Web-authoring environments. However, for online documentation and help, HTML is often a good choice. HTML converters help produce usable online documents, and HTML-based help systems provide similar features to those found in WinHelp.
Gerrior, Suzanne, Marianne Rodrigues, Monica E. Stein, Frances C. McGill and Stephen R. Blair. STC Proceedings (1997). Articles>Documentation>Online>HTML