As I've talked to teachers here at the Google Summit I've noticed that many of them are working in schools that use interactive whiteboards.
A couple of years ago I co-authored a book about the effective use of interactive whiteboard technology, called The Interactive Whiteboard Revolution. I'm still very much of the opinion that IWBs can be either a brilliantly flexible tool in the hands of a talented teacher, or a complete and utter waste of time and money when used poorly. Like most technologies, the effectiveness of their use is highly dependent on how they get used.
While the Google Summit has almost nothing to do with IWBs, the book might be of some use to those teachers who do use them. So for what it's worth, I'm including a link to the book here for anyone that would like to download a copy, along with a shorter magazine article called 10 IWB Features Every Teacher Should Know About.
You're welcome to take a copy of each of these if you like. Just click on the images below and in the preview window look for the little download arrow in the top left corner.