I co-authored a book on Web development in a Linux+Apache environment. My content focused on AJAX. Professional LAMP: Linux, Apache, MySQL, and PHP. Gerner, Owens, Naramore, Warden. December 2005. Wrox/Wiley Publishing.
I'm also a Neuroscience geek. I am a former researcher at Dr. Stephen Berry's Neuroscience Lab at Miami University (Oxford, OH), where I was involved in researching cognitive neuroscience and electrophysiological topics with rabbits.
Of course, there's also the sandbox.