I ran across two very good ebooks about teaching with some of the newest Web 2.0 tools. These tools are actually Cloud Computing based tools that are free to use, as are the ebooks. Michael Zimmer is the author of both books. The ebooks are short and only take a few minutes to flip through. They are hosted on a site called issue.com, another cloud app that allows you to publish ebooks like these.
I can even embed the books in this post. This first is titled: "Tools for the 21st Century Teacher"
And the second is titled: "A New Way to Lecture" and focuses on new Cloud Apps that you can use to lecture, without using PowerPoint.
But, these are in Flash format so you won't be able to read them on your iPhone, or iPad. :-(