Physics
Q&A for active researchers, academics and students of physics
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Personal Finance & Money
Q&A for people who want to be financially literate
Astronomy
Q&A for astronomers and astrophysicists
Travel
Q&A for road warriors and seasoned travelers
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Economics
Q&A for those who study, teach, research and apply economics and econometrics
Aviation
Q&A for aircraft pilots, mechanics, and enthusiasts
Home Improvement
Q&A for contractors and serious DIYers
The Great Outdoors
Q&A for people who love being outdoors enjoying nature and wilderness, and learning about the required skills and equipment
Politics
Q&A for people interested in governments, policies, and political processes
Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
Stack Overflow
Q&A for professional and enthusiast programmers
Space Exploration
Q&A for spacecraft operators, scientists, engineers, and enthusiasts
Law
Q&A for legal professionals, students, and others with experience or interest in law
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Academia
Q&A for academics and those enrolled in higher education
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role
Puzzling
Q&A for those who create, solve, and study puzzles
Server Fault
Q&A for system and network administrators
User Experience
Q&A for user experience researchers and experts
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Amateur Radio
Q&A for amateur radio enthusiasts
Sports
Q&A for participants in team and individual sport activities
Data Science
Q&A for Data science professionals, Machine Learning specialists, and those interested in learning more about the field
Chemistry
Q&A for scientists, academics, teachers, and students in the field of chemistry
Linguistics
Q&A for professional linguists and others with an interest in linguistic research and theory
History of Science and Mathematics
Q&A for people interested in the history and origins of science and mathematics
Latin Language
Q&A for linguists, teachers, and students wanting to discuss the finer points of the Latin language
Chess
Q&A for serious players and enthusiasts of chess
Bitcoin
Q&A for Bitcoin users, developers, and enthusiasts
Photography
Q&A for professional, enthusiast and amateur photographers
Writing
Q&A for the craft of professional writing, including fiction, non-fiction, technical, scholarly, and commercial writing
Literature
Q&A for scholars and enthusiasts of literature
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
Information Security
Q&A for information security professionals
Pets
Q&A for pet owners, caretakers, breeders, veterinarians, and trainers
Earth Science
Q&A for those interested in the geology, meteorology, oceanography, and environmental sciences
Web Applications
Q&A for power users of web applications
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Ask Ubuntu
Q&A for Ubuntu users and developers
Biology
Q&A for biology researchers, academics, and students
English Language Learners
Q&A for speakers of other languages learning English
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
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Super User
Q&A for computer enthusiasts and power users
Code Review
Q&A for peer programmer code reviews
French Language
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
Retrocomputing
Q&A for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear
Mathematics
Q&A for people studying math at any level and professionals in related fields
Biblical Hermeneutics
Q&A for professors, theologians, and those interested in exegetical analysis of biblical texts
Interpersonal Skills
Q&A for people looking to improve their interpersonal communication skills
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