Reader Control
Authors ultimately can't control what a reader will read next. Even in a closed hypertext (one without internal or external links) the system itself allows reader to choose their own pathways. If I were to create a closed, strictly linear document, a reader still has a variety of ways (the "Back" button, bookmarks, etc.) to leave my document at any point and go to another. Readers in print can do the same thing, but going from work to work (if you have all the works you're interested in on your shelves) is cumbersome at best. Authors on the Web need to be aware of how their works fit into the network, the conversation, and that readers control their own reading paths much more easily than they do in print.
The Author's Authority 
Multiple Authors
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