Ken Rosen is a distinguished author of textbooks in computer science and mathematics with more than 22 years of experience working at AT&T and Bell Labs.

Douglas Host worked at AT&T and Bell Labs and has more than 29 years' experience working on computing and network projects.

Rachel Klee is a computer science teacher and UNIX expert.

James Farber is a member of the technical staff at Avaya and formerly worked at AT&T and Bell Labs.

Richard Rosinski is vice president of professional services at VoiceGenie Technologies and worked at AT&T and Bell Labs for 18 years.