Joe Johnston is a veteran LAMP stack application architect and developer with over fifteen years of experience producing software as a service and traditional desktop applications. He is the co-author of Programming Web Services with XML-RPC and Unix Power Tools, 3rd Edition, O'Reilly. He has written for the Perl Journal, IBM's developer Works, and XML.com. His blog is http://taskboy.com/.

David J McClelland has been creating cutting-edge software and content that bridges design, development, and information for over 20 years. He is currently a principle user interface engineer, developing software to manage distributed devices via the cloud.

Adi Singh is a coder and roboticist from Stanford University with a keen interest in investing, travelling, and swimming. A recipient of the prestigious SIA-Youth Scholarship from the Singapore's Ministry of Education and a McCaw Scholarship from Stanford, he has programmed for many renowned organizations, such as Stanford Space Development Lab, Rolls-Royce Deutschland, and Couchsurfing, in the past.

He took a gap for a year after his Junior college to travel around the world and train himself in professional coding outside an educational environment. He recently completed his latest adventure dubbed 10-countries-in-10-weeks and keeps busy these days managing his tech firm Hacero Labs. He will be returning back to Stanford this fall to complete his studies.