The Digital Shift has a survey article that could prove to be most useful to teachers. Here’s the beginning:
Following are tools that you can use with your students to create ebooks. With them, you can exercise a range of capabilities, from adding a few page-turning effects to PDFs to creating full-blown interactive ebooks with multimedia elements.
The simplest form of an ebook is a PDF or Word document that’s been enhanced with some basic page-turning effects and displayed online. Any word-processing program can be used to create the document. Then, to add page-turning effects for online display, upload the completed document to a service like Issuu or Yudu. Both are free services where you can upload PDF, Word, Excel, and Powerpoint files to create online magazines. The page-turning effect and zoom options are built into Issuu and Yudu and automatically activated. After your page-turning document is live on either service, you can embed it into a blog, wiki, or website. Issuu offers a “bookshelf” widget, which you can also embed to display previews of multiple documents. The widget is ideal for teachers who want to display the work of an entire class in one neat package on a classroom blog.
(Via The Digital Shift.)