Stack Overflow
Q&A for professional and enthusiast programmers
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Open Source
Q&A for people organizing, marketing or licensing open source development projects
Arqade
Q&A for passionate videogamers on all platforms
Software Recommendations
Q&A for people seeking specific software recommendations
Game Development
Q&A for professional and independent game developers
Hardware Recommendations
Q&A for people seeking specific hardware recommendations
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Anime & Manga
Q&A for anime and manga fans
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Retrocomputing
Q&A for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts
Space Exploration
Q&A for spacecraft operators, scientists, engineers, and enthusiasts
The Workplace
Q&A for members of the workforce navigating the professional setting
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Information Security
Q&A for information security professionals
Politics
Q&A for people interested in governments, policies, and political processes
Music: Practice & Theory
Q&A for musicians, students, and enthusiasts
3D Printing
Q&A for 3D printing enthusiasts
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Server Fault
Q&A for system and network administrators
Code Review
Q&A for peer programmer code reviews
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Super User
Q&A for computer enthusiasts and power users
Web Applications
Q&A for power users of web applications
Artificial Intelligence
Q&A for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment