Daisuke is a developer working for the finance industry and located in Japan. He mainly works on Java 6 and C# (.NET 3.5) with some Perl scripts here and there.
Stack Overflow
Q&A for professional and enthusiast programmers
Server Fault
Q&A for professional system and network administrators
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
User Experience
Q&A for user experience researchers and experts
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
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Sports
Q&A for participants in team and individual sport activities
The Workplace
Q&A for members of the workforce navigating the professional setting
Quantitative Finance
Q&A for finance professionals and academics
Japanese Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Japanese language
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
