These days I'm working on websites and other projects for the Library of Congress and working on a number of open source projects: mostly on Github with a few BitBucket projects.
You can find me at http://chris.improbable.org/ and on Twitter as @acdha.
Libraries & Information Science
Q&A for librarians and library professionals
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Server Fault
Q&A for professional system and network administrators
Ask Different
Q&A for power users of Apple hardware and software
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
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
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Photography
Q&A for professional, enthusiast and amateur photographers
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
User Experience
Q&A for user experience researchers and experts
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Answers OnStartups
Q&A for entrepreneurs looking to start or run a new business
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
The Workplace
Q&A for members of the workforce navigating the professional setting
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Ask Patents
Q&A for people interested in improving and participating in the patent system
