I've just learned about Flowgrams. FG's basically allow users to take others on an audio tour of the web. I made a Flowgram about the artist Marcel Duchamp for students of art history. But, this tech could be applied to so many different topics. Here's the link: http://beta.flowgram.com/f/p.html#I6E0K4N7GOH53F At the end, you'll be given the opportunity to create a flowgram yourself (if you want!)