Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
Personal Finance & Money
Q&A for people who want to be financially literate
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Mathematics
Q&A for people studying math at any level and professionals in related fields
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Server Fault
Q&A for professional system and network administrators
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
The Workplace
Q&A for members of the workforce navigating the professional setting
Academia
Q&A for academics and those enrolled in higher education
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Martial Arts
Q&A for students and teachers of all martial arts
Quantitative Finance
Q&A for finance professionals and academics
Answers OnStartups
Q&A for entrepreneurs looking to start or run a new business
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
Spanish Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Spanish language
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Personal Productivity
Q&A for people wanting to improve their personal productivity