Expert in: C#, .NET/IL, Unicode; extensive experience with: SQL, HTML, CSS, Perl, PHP, JavaScript, Delphi, protocols such as HTTP, SMTP, etc.; minor experience with: Java, C/C++
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Linguistics
Q&A for professional linguists and others with an interest in linguistic research and theory
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
User Experience
Q&A for user experience researchers and experts
Physics
Q&A for active researchers, academics and students of physics
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role
German Language & Usage
Q&A for speakers of German wanting to discuss the finer points of the language and translation
Mathematics
Q&A for people studying math at any level and professionals in related fields
Islam
Q&A for Muslims, experts in Islam, and those interested in learning more about Islam
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Christianity
Q&A for committed Christians, experts in Christianity and those interested in learning more
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Server Fault
Q&A for professional system and network administrators
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Chemistry
Q&A for scientists, academics, teachers and students
The Workplace
Q&A for members of the workforce navigating the professional setting