It has many interesting postings and replies looking for places to publsh books online free. I looked at http://issuu.com/
This is the blurb on it:
"Issuu is the place for online publications: Magazines, catalogs, documents, and stuff you'd normally find on print. It's the place where YOU become the publisher: Upload a document, it's fast, easy, and totally FREE. Find and comment on thousands of great publications. Join a living library, where anyone finds publications about anything and share them with friends."
It might have real application for publishing books in the classroom. Don't know if we can view it from school however.
Further exploration shows that they could click to other places . . . thus a problem. There is a posting from ISSUU saying that there may be an answer for schools later. I'll continue to check on this.