I also use subversion, bazaar, launchpad and trac extensively.
My Favorite Database is PostgreSQL, but I am familiar with MySQL. I also have experience with Oracle, Sybase, Microsoft SQL Server and Informix.
On my free time I work on the Mixxx project, the world's most popular Open Source DJ program. I also DJ in my spare time.
Q&A for professional and enthusiast programmers
Q&A for Ubuntu users and developers
Q&A for sound engineers, producers, editors, and enthusiasts
Q&A for power users of Apple hardware and software
Q&A for system and network administrators
Q&A for computer enthusiasts and power users
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for professional programmers interested in conceptual questions about software development
Q&A for enthusiasts and power users of the Android operating system
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Q&A for professional and independent game developers
Q&A for Information security professionals
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation
Q&A for users and developers of hardware and software for Raspberry Pi