I am a professional programmer and web application tester. I'm sort of a jack of all trades because I work with almost every technology under the sun as a hobby, so most of the questions that appear on StackExchange sites are intensely interesting to me, and many of the answers that I come up with will prove useful to me in my pursuits in the future.
I have professional and serious hobby experience with system administration (client and server), desktop applications and web programming (mostly in higher level languages), audio processing and encoding, functional validation, and application security testing. My degree is in Computer Science but my interests are much broader than most of my peers.
Chances are, if you've got a question related to technology, I'm right there with you -- either I have the same question or have had it at some point in the past. I'll try my best to impart my own personal experience in the hopes that it is useful, but be wary that I sometimes jump the gun and post experiences that may not represent actual fact. I encourage everyone to verify the information they read on the internet before making important decisions based upon it, and my answers are no exception.
Q&A for computer enthusiasts and power users
Q&A for Ubuntu users and developers
Q&A for professional and enthusiast programmers
Q&A for professional system and network administrators
Q&A for software quality control experts, automation engineers, and software testers
Q&A for people interested in improving and participating in the patent system
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Q&A for enthusiasts and power users of the Android operating system
Q&A for passionate videogamers on all platforms
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Q&A for IT security professionals
Q&A for members of the workforce navigating the professional setting
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for linguists, etymologists, and serious English language enthusiasts
Q&A for power users of web applications
Q&A for people studying math at any level and professionals in related fields
Q&A for professional programmers interested in conceptual questions about software development
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Q&A for theoretical computer scientists and researchers in related fields
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for user experience researchers and experts
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games