Kirk McElhearn is a writer and translator, and has written and co-written more than a half-dozen books on the Macintosh, covering both software and hardware. As a journalist, Kirk has written articles for a variety of publications, including Macworld magazine and TidBITS. In the past 15 years, Richard Giles has been at the forefront of digital communications and information technology. At the start of the 90s, he worked with Hutchison Telecom and was one of the first to prove mobile phone cloning. After completing his bachelor of commerce in the early 90s, and before Netscape, eBay, and Amazon, he built e-commerce solutions for major Australian companies. In the past 9 years he has worked for Sun Microsystems, engineering and selling network solutions to major organizations. Richard is fascinated by the way technology is effecting and influencing our lives, and is a pioneer in Australian weblogging and podcasting. He pays particular attention to emerging technologies, and is currently passionate about gadgets, digital liberties, online social networking, and the digital communications revolution. Jack Herrington is an engineer who writes in his little spare time. He's written a bunch of articles on a wide range of technical topics from XML to dynamic languages, digital photography to podcasting. He's also written three books: Code Generation in Action, Podcasting Hacks, and the forthcoming PHP Hacks. Why the diverse topics? Because he really doesn't stay on any particular topic for too long, though code generation does seem to be a theme and that's why he still runs the Code Generation Network. Jack currently works at a company called Leverage Software that does social networking software. Before that, he worked at Macromedia on Dreamweaver. And before that, at a startup named Certive and a biotech company called Axon Instruments. Jack never went to college, but he worked at the University of Miami for a while and is a diehard 'Canes football fan. Jack lives in the Bay Area in northern California with his wife Lori, his daughter Megan, and their two dogs, Sadie and Oso. He writes more personal stuff in his Driving Sideways blog. Jack warns that he's a hardcore liberal, so you may not like his views there; he's fairly active politically. You can also visit his family wiki. For fun, he bikes, hikes, bakes, makes origami, and now plays golf.