I am a professor of Computer Science and Mathematics at the University of Connecticut; I am also the LaTeX maintainer for the Theory of Computing (http://theoryofcomputing.org), an online journal.
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Q&A for professional mathematicians
Q&A for people studying math at any level and professionals in related fields
Q&A for professional and enthusiast programmers
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Q&A for active researchers, academics and students of physics