I enjoy programming in C++, and also know C, Java, python, php and x86 asm.
The various projects that I have / am working on include (these are all just for fun and to explore the capabilities of different languages / frameworks):
- raytracer
- object oriented OS in C++
- 2d game engine
- CAS (computer algebra system) which incorporates elements of compilers / interpreters
I really enjoy contributing to
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Personal Finance & Money
Q&A for people who want to be financially literate
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Game Development
Q&A for professional and independent game developers
Server Fault
Q&A for professional system and network administrators
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
User Experience
Q&A for user experience researchers and experts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
Mathematics
Q&A for people studying math at any level and professionals in related fields
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Biblical Hermeneutics
Q&A for professors, theologians, and those interested in exegetical analysis of biblical texts
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers