Jonathan Oxer is the founder and technical director of Internet Vision Technologies in Australia, as well as the past president of Linux Australia, the national organization for Linux users, developers, and vendors.
Kyle Rankin is a system administrator who enjoys troubleshooting, problem solving, and system recovery. He is also the author of Knoppix Hacks, Knoppix Pocket Reference, Linux Multimedia Hacks, and Ubuntu Hacks for O'Reilly Media. He has been using Linux in many different forms since 1998, and has used live CDs to demo Linux and troubleshoot machines -- from DemoLinux to the LinuxCare bootable toolbox to Knoppix.
Bill Childers is Director of Enterprise Systems for Quinstreet, Inc. He's been working with Linux and Unix since before it was cool, and previously worked for Sun Microsystems and Set Engineering.