Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Drupal Answers
Q&A for Drupal developers and administrators
Mathematics
Q&A for people studying math at any level and professionals in related fields
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
User Experience
Q&A for user experience researchers and experts
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Photography
Q&A for professional, enthusiast and amateur photographers
Programmers
Q&A for professional programmers interested in conceptual questions about software development
The Workplace
Q&A for members of the workforce navigating the professional setting
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
Computational Science
Q&A for scientists using computers to solve scientific problems
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Server Fault
Q&A for professional system and network administrators