Stack Overflow
百度 然而这些措施的作用尚不明显，应试化的问题仍然存在。Q&A for professional and enthusiast programmers
Super User
Q&A for computer enthusiasts and power users
Server Fault
Q&A for system and network administrators
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Video Production
Q&A for engineers, producers, editors and enthusiasts spanning the fields of video and media creation
Information Security
Q&A for information security professionals
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Sound Design
Q&A for sound engineers, producers, editors, and enthusiasts
Quantitative Finance
Q&A for finance professionals and academics
Chemistry
Q&A for scientists, academics, teachers, and students in the field of chemistry
Home Improvement
Q&A for contractors and serious DIYers
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role
Law
Q&A for legal professionals, students, and others with experience or interest in law
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts
Network Engineering
Q&A for network engineers
Music: Practice & Theory
Q&A for musicians, students, and enthusiasts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
MathOverflow
Q&A for professional mathematicians
Mathematics
Q&A for people studying math at any level and professionals in related fields
Motor Vehicle Maintenance & Repair
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Software Recommendations
Q&A for people seeking specific software recommendations