I've been writing nonfiction since I started taking journalism classes in college, sometime in 1988 or so. I did it for a living for seven years or so, then switched to writing software. Now it's sometimes kind of relaxing to go back to writing.
Reverse-engineering the HP-75C Computer (© 1996)
Long-shaft Conversion (© 2001)
Installing a Stereo (© 2001)
Covered cockpit speakers (© 2001)