I am a freelance C++/Qt developer.
I am a C++ fan-boy and I am a fan of anything which is open-source, and support and follow it religiously.
Thus my primary OS is Ubuntu Linux and for the same reason I chose Qt as primary tool for all my development needs.
As such, I (have to) develop mainly for Windows OS (due to it's large market share), but I also develop for (Ubuntu) Linux and Mac OS as and when needed. For all the apps I use personally, I develop and use in Ubuntu Linux.
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Ask Different
Q&A for power users of Apple hardware and software
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Programmers
Q&A for professional programmers interested in conceptual questions about software development
The Workplace
Q&A for members of the workforce navigating the professional setting
Answers OnStartups
Q&A for entrepreneurs looking to start or run a new business
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
