Me codemonkey. Me C# good! Codemonkey like cheetos! (But not, surprisingly enough, mountain dew.)
Stack Overflow
Q&A for professional and enthusiast programmers
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Travel
Q&A for road warriors and seasoned travelers
Personal Finance & Money
Q&A for people who want to be financially literate
Super User
Q&A for computer enthusiasts and power users
Chess
Q&A for serious players and enthusiasts of chess
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Puzzling
Q&A for those who create, solve, and study puzzles
Mathematics Educators
Q&A for those involved in the field of teaching mathematics
Mathematica
Q&A for users of Wolfram Mathematica
Physics
Q&A for active researchers, academics and students of physics
Chemistry
Q&A for scientists, academics, teachers, and students in the field of chemistry
Cross Validated
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Writing
Q&A for the craft of professional writing, including fiction, non-fiction, technical, scholarly, and commercial writing
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Ask Different
Q&A for power users of Apple hardware and software
Law
Q&A for legal professionals, students, and others with experience or interest in law
Politics
Q&A for people interested in governments, policies, and political processes
Computer Science Educators
Q&A for those involved in the field of teaching Computer Science
Open Source
Q&A for people organizing, marketing or licensing open source development projects
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Retrocomputing
Q&A for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear
Space Exploration
Q&A for spacecraft operators, scientists, engineers, and enthusiasts
MathOverflow
Q&A for professional mathematicians
Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
User Experience
Q&A for user experience researchers and experts
Server Fault
Q&A for system and network administrators
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Mathematics
Q&A for people studying math at any level and professionals in related fields
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Ask Ubuntu
Q&A for Ubuntu users and developers
Web Applications
Q&A for power users of web applications
Pets
Q&A for pet owners, caretakers, breeders, veterinarians, and trainers
The Workplace
Q&A for members of the workforce navigating the professional setting
Aviation
Q&A for aircraft pilots, mechanics, and enthusiasts
Software Recommendations
Q&A for people seeking specific software recommendations
Arqade
Q&A for passionate videogamers on all platforms
Academia
Q&A for academics and those enrolled in higher education
English Language Learners
Q&A for speakers of other languages learning English
Music: Practice & Theory
Q&A for musicians, students, and enthusiasts
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role
Information Security
Q&A for information security professionals
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Artificial Intelligence
Q&A for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment
Interpersonal Skills
Q&A for people looking to improve their interpersonal communication skills