Going Paperless — No Longer a Revolutionary Idea 
Moving user documentation from paper to online requires long–term planning and hard work. You must rethink how you design documents and determine the best way to present information online. You can take steps to downsize the existing documentation workload. You may even change the way you work with the software development staff. As a result, you will probably produce better documents, start working a lot smarter and save the company a lot of money.
Mulreany, Sharon R. and Risa Glick. STC Proceedings (1996). Articles>Documentation>Online