Stack Overflow
Q&A for professional and enthusiast programmers
Super User
Q&A for computer enthusiasts and power users
Arqade
Q&A for passionate videogamers on all platforms
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Arduino
Q&A for developers of open-source hardware and software that is compatible with Arduino
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
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Information Security
Q&A for information security professionals
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Server Fault
Q&A for system and network administrators
Software Recommendations
Q&A for people seeking specific software recommendations
Hardware Recommendations
Q&A for people seeking specific hardware recommendations