Wide ranging self-taught experience. Today, mainly focus on .NET/Mono using C# including Windows Phone and ASP.NET development.
Stack Overflow
Q&A for professional and enthusiast programmers
Politics
Q&A for people interested in governments, policies, and political processes
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
User Experience
Q&A for user experience researchers and experts
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Server Fault
Q&A for professional system and network administrators
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Physics
Q&A for active researchers, academics and students of physics
Web Applications
Q&A for power users of web applications
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Mathematics
Q&A for people studying math at any level and professionals in related fields
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
Windows Phone
Q&A for enthusiasts and power users of Windows Phone OS
Motor Vehicle Maintenance & Repair
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Personal Finance & Money
Q&A for people who want to be financially literate
The Workplace
Q&A for members of the workforce navigating the professional setting
Ask Patents
Q&A for people interested in improving and participating in the patent system
Academia
Q&A for academics and those enrolled in higher education