Stack Overflow
Q&A for professional and enthusiast programmers
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
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
Anime & Manga
Q&A for anime and manga fans
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Ukrainian Language
Q&A for linguists, teachers and students of the Ukrainian language
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
The Great Outdoors
Q&A for people who love being outdoors enjoying nature and wilderness, and learning about the required skills and equipment
Travel
Q&A for road warriors and seasoned travelers
User Experience
Q&A for user experience researchers and experts
Astronomy
Q&A for astronomers and astrophysicists
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
Linguistics
Q&A for professional linguists and others with an interest in linguistic research and theory
Mathematics Educators
Q&A for those involved in the field of teaching mathematics
Spanish Language
Q&A for linguists, teachers, students and Spanish language enthusiasts in general wanting to discuss the finer points of the language
Super User
Q&A for computer enthusiasts and power users
Interpersonal Skills
Q&A for people looking to improve their interpersonal communication skills
Hardware Recommendations
Q&A for people seeking specific hardware recommendations