If you need to send me something, my mailing address is:
Human-Computer Interaction Institute
School of Computer Science
Carnegie Mellon University
5000 Forbes Ave.
Pittsburgh, PA 15213
I have been receiving requests for signed copies of the book. My publisher and I have donated books to the Pancreatic Cancer Action Network, and they are sending them out in return for donations to support pancreatic cancer research. You can donate and get a signed book here.