Jonathan Corbet got his first look at the BSD Unix source back in 1981, when an instructor at the University of Colorado let him "fix" the paging algorithm. He has been digging around inside every system he could get his hands on ever since, working on drivers for VAX, Sun, Ardent, and x86 systems. He got his first Linux system in 1993 and has never looked back. Jonathan is currently the cofounder and executive editor of Linux Weekly News. He lives in Boulder, Colorado with his wife and two children.
Alessandro Rubini installed Linux 0.99.14 soon after getting his degree as an electronic engineer. He then received a Ph.D. in computer science at the University of Pavia despite his aversion toward modern technology. He left the University after getting his Ph.D. because he didn't want to write articles. He now works as a freelancer, writing device drivers and articles. He used to be a young hacker before his babies were born; now he's an old advocate of free software who developed a bias for non-PC computer platforms.
Greg Kroah-Hartman has been writing Linux kernel drivers since 1999 and is currently the maintainer for the USB, PCI, I2C, driver core, and sysfs kernel subsystems. He is also the maintainer of the udev and hotplug userspace programs, as well as a Gentoo kernel maintainer, ensuring that his inbox is never empty. He is a contributing editor to Linux Journal magazine.