Biologist and Applied Math Professor at Getulio Vargas Foundation.
Stack Overflow
Q&A for professional and enthusiast programmers
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Web Applications
Q&A for power users of web applications
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
Server Fault
Q&A for professional system and network administrators
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
