I'm a software engineer and system administrator at the University of Maryland.
Mathematics
Q&A for people studying math at any level and professionals in related fields
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Server Fault
Q&A for professional system and network administrators
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
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
Sports
Q&A for participants in team and individual sport activities
Robotics
Q&A for professional robotic engineers, hobbyists, researchers and students
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
