I teach Database design at Sheffield Hallam University, but I also work on web applications.
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Mathematics
Q&A for people studying math at any level and professionals in related fields
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
User Experience
Q&A for user experience researchers and experts
Web Applications
Q&A for power users of web applications
Server Fault
Q&A for professional system and network administrators
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
The Workplace
Q&A for members of the workforce navigating the professional setting
Genealogy & Family History
Q&A for expert genealogists and people interested in genealogy or family history
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language