The authors gratefully acknowledge the contributions of our friend and colleague William Wright,
whom we cajoled into acting as the technical editor and all-around technical conscience of this book.
Our warmest gratitude also to Maureen Spears, our English editor at Wiley, who put up with our terrible
geek humor during conference calls and worked tirelessly to bring the quality of this book up to what
you see before you.
We also appreciate the Web 2.0 luminaries who agreed to share their expertise and candid opinions with
us, and our readers for the interviews scattered throughout the book. These include Dojo Toolkit’s
Alex Russell, Ruby on Rails’ David Heinemeier Hansson, 37Signals’ Jason Fried, and Second Life’s
Wagner James Au. We thank our BBN colleagues John Hebeler, for his entertaining sidebar comments,
and Jonathan Nilsson, for his helpful comments.
Finally, and most important, we thank our friends, families, and significant others for their forbearance.
Writing is a solitary activity that tends to exclude others, even those most important to us; and we appreciate all their support, and promise somehow to make up for the lost time and opportunities.