Just had a play with Bookr and made this. I thought I might use it for our "Wild New Zealand" unit next term. Very cool to be able to make a "book" with pages that turn. I also like the fact that it is embeddable.
I seem to "play" online a lot. Not that I think this is a bad thing, I personally feel that the best way to learn to use new technology is to take the time to play and explore. By playing you can come to grips with how something works. It also enables you to identify the pitfalls and possibilities. The more you play, the more ideas you start to generate for uses in the classroom.