According to readwriteweb.com:
Best-selling crime author James Patterson will release a new kind of novel next month – one that’s been collaboratively written with the crowd. Called AirBorne, the upcoming novel will feature 30 chapters, each written by a different author except the first and last – those will be written by Patterson himself.
The co-authors each won the right to pen one of the chapters in a contest co-sponsored by Borders Australia and Random House. The book will be released, one chapter at a time, on the web, of course.