I'm on such a "free education" trip right now. Here's the link to Wikibooks which is basically free books written by people (supposedly) in the know. There's even Wikiversity so you can take your free books and go to free university and get a free education.
Link.
I'm not sure which is the more interesting part of this post: the levitation or the wiki. eHow has created a wikiHow to be the world's largest how-to manual. Interesting. David Blaine's levitation trick is equally interesting. Nevertheless, explore the fun
How to Perform the Balducci Levitation - wikiHow