Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Ask Ubuntu
Q&A for Ubuntu users and developers
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Engineering
Q&A for professionals and students of engineering
Martial Arts
Q&A for students and teachers of all martial arts
Game Development
Q&A for professional and independent game developers
English Language Learners
Q&A for speakers of other languages learning English
Robotics
Q&A for professional robotic engineers, hobbyists, researchers and students
Bricks
Q&A for LEGO® and building block enthusiasts
Christianity
Q&A for committed Christians, experts in Christianity and those interested in learning more
Chemistry
Q&A for scientists, academics, teachers, and students in the field of chemistry
Arqade
Q&A for passionate videogamers on all platforms
Arduino
Q&A for developers of open-source hardware and software that is compatible with Arduino
Biblical Hermeneutics
Q&A for professors, theologians, and those interested in exegetical analysis of biblical texts
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Area 51
Q&A for proposing new sites in the Stack Exchange network
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Stack Overflow
Q&A for professional and enthusiast programmers
Biology
Q&A for biology researchers, academics, and students
Homebrewing
Q&A for dedicated home brewers and serious enthusiasts
Physics
Q&A for active researchers, academics and students of physics