"Leadership almost always involves thinking and acting like the underdog. That's because leaders work to change things, and the people who are winning rarely do."
Seth Godin, Tribes
Here's where you can download a free audio copy of Tribes by Seth Godin thanks to Seth and audible.com
Here's where you can go to download the presentation that goes with it.
UPDATE: If you any trouble with the downloads, go to presentationzen and look for the links to the audio book and the powerpoint in the blog post. You may also have to register before downloading.