Ask Different
Q&A for power users of Apple hardware and software
Stack Overflow
Q&A for professional and enthusiast programmers
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
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Q&A for professional, enthusiast and amateur photographers
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
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
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Physics
Q&A for active researchers, academics and students of physics
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Mathematics
Q&A for people studying math at any level and professionals in related fields
Game Development
Q&A for professional and independent game developers
Mi Yodeya
Q&A for those who base their lives on Jewish law and tradition and anyone interested in learning more
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Motor Vehicle Maintenance & Repair
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
The Workplace
Q&A for members of the workforce navigating the professional setting
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
The Great Outdoors
Q&A for people who love outdoor activities, excursions, and outdoorsmanship
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Software Quality Assurance & Testing
Q&A for software quality control experts, automation engineers, and software testers
Answers OnStartups
Q&A for entrepreneurs looking to start or run a new business
German Language & Usage
Q&A for speakers of German wanting to discuss the finer points of the language and translation
Personal Finance & Money
Q&A for people who want to be financially literate
Personal Productivity
Q&A for people wanting to improve their personal productivity
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
