I'm an ASP.Net (VB.Net) developer professionally.
I've also built a site using Ruby on Rails. In the off chance anyone cares to visit it, hillerenterprises.com is a site I built for my wife's father using RoR.
I've recently been working through the problems on Project Euler (http://projecteuler.net) using Python. I love that site.
I'm now playing around with Common Lisp, too. Land of Lisp was an inspiring read.
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
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Programmers
Q&A for professional programmers interested in conceptual questions about software development
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language