Professor of Computer Science, with research interests in Programming Languages and Theory of Programming.
My profiles on Theoretical Computer Science, Computer Science, Mathematics, Stackoverflow, and Superuser.
Also on Programmers, where I am shooting for a negative rating (if such a thing is possible)!
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Computer Science
Q&A for students, researchers and practitioners of computer science
Stack Overflow
Q&A for professional and enthusiast programmers
Mathematics
Q&A for people studying math at any level and professionals in related fields
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Physics
Q&A for active researchers, academics and students of physics
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems