Movies & TV
Q&A for movie and TV enthusiasts
Super User
Q&A for computer enthusiasts and power users
English Language Learners
Q&A for speakers of other languages learning English
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Space Exploration
Q&A for spacecraft operators, scientists, engineers, and enthusiasts
Physics
Q&A for active researchers, academics and students of physics
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Arqade
Q&A for passionate videogamers on all platforms
Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
Astronomy
Q&A for astronomers and astrophysicists
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Mathematics Educators
Q&A for those involved in the field of teaching mathematics
History
Q&A for historians and history buffs