Super User
Q&A for computer enthusiasts and power users
Stack Overflow
Q&A for professional and enthusiast programmers
English Language Learners
Q&A for speakers of other languages learning English
Ask Different
Q&A for power users of Apple hardware and software
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Information Security
Q&A for information security professionals
Academia
Q&A for academics and those enrolled in higher education
Video Production
Q&A for engineers, producers, editors and enthusiasts spanning the fields of video and media creation
Ask Ubuntu
Q&A for Ubuntu users and developers
Data Science
Q&A for Data science professionals, Machine Learning specialists, and those interested in learning more about the field
Photography
Q&A for professional, enthusiast and amateur photographers
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
Software Recommendations
Q&A for people seeking specific software recommendations
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Network Engineering
Q&A for network engineers
Web Applications
Q&A for power users of web applications
Cross Validated
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Computational Science
Q&A for scientists using computers to solve scientific problems
Mathematics
Q&A for people studying math at any level and professionals in related fields