After 3 years of web-site development and some project management, working on PhD in Information Retrival/Data Mining/Semantic Web.
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Mathematics
Q&A for people studying math at any level and professionals in related fields
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Stack Overflow
Q&A for professional and enthusiast programmers
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Computer Science
Q&A for students, researchers and practitioners of computer science
Cognitive Sciences
Q&A for practitioners, researchers, and students in cognitive science, psychology, neuroscience, and psychiatry
Audio-Video Production
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of audio, video, and media creation
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing