Stack Overflow
Q&A for professional and enthusiast programmers
Super User
Q&A for computer enthusiasts and power users
Software Recommendations
Q&A for people seeking specific software recommendations
Hardware Recommendations
Q&A for people seeking specific hardware recommendations
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Skeptics
Q&A for scientific skepticism
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Puzzling
Q&A for those who create, solve, and study puzzles
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
Freelancing
Q&A for self-employed and freelance workers
Earth Science
Q&A for those interested in the geology, meteorology, oceanography, and environmental sciences
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
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
Arduino
Q&A for developers of open-source hardware and software that is compatible with Arduino
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
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
Information Security
Q&A for information security professionals
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Drones and Model Aircraft
Q&A for experienced flyers, pilots, and builders of drones and model aircraft
Medical Sciences
Q&A for professionals in medical and allied health fields, students of those professions, related academics, and others with a sound understanding of medicine and healthcare-related sciences