I know not everyone here is fond of audiobooks but for those who are and who like "free", here's one just long enough for one commute day in Los Angeles.
It's through Audible.com. I don't know if folks outside of the U.S. can make use of this link, but you are free to try. I don't think you have to be a member to download it.
Tribes by Seth Godin
If you're looking at this page this far ahead of publication, you're probably a member of Seth Godin's tribe. And if so, you already know what this book is about.You know about waiting in line at an Apple store, or the look on a fellow Deadhead's face.You know about the way it feels to go back to the church where you grew up. You know about the real power of a brand. According to Godin, Tribes are groups of people aligned around an idea, connected to a leader and to each other. Tribes make our world work, and always have. The new opportunity is that it's easier than ever to find, organize, and lead a tribe. The Web has enabled an explosion of all kinds of tribes -- and created shortage of people to lead them. This is the growth industry of our time. Tribes (the book) will help you understand exactly what's at stake, and why YOU can and should lead a tribe of your own. If you keep reading Seth's blog, you'll learn about a special, invitation-only online community that will connect readers to each other. Stay tuned for details. Are you on the bus?