Wade Billings sent me a link to the we are smarter than me project. The goal is to collaboratively write a business book. If you've got something to say, sign up and say it. The book will be published by Pearson Publishing and there's a meet-up planned for March for anyone who's contributed.
The book is being written using book wiki, a tool for creating books on a wiki (not surprisingly). The founders have set up chapters and written some starter text for each chapter to get them going. New chapters can be proposed, but the founders exert some control here. In true wiki fashion, anything you write might be changed by someone else.
I'm anxious to see the outcome of this experiment. Writing a book is a huge undertaking. Writing a piece of a book is a much smaller commitment. If the process produces something worth reading, it could portend a completely new way of creating books.