I find myself so busy lately that I really can't dedicate any effort to my pet projects (work & life seems to get in the way). Since I still have some computer time free, and since I really can't gather the mental effort to write good code, I try to spend a short amount of time writing a lecture on various subjects.
I used to teach quite a bit during my time in the army, for a long time, that was my job description, and it is something that I really enjoy. I didn't get to talk much about technical stuff (unless you consider hand cuffs to be technical :-) ), though. I gave a couple of lessons in tech stuff since I left the army, and it had a great time. I'll see if/when I can post some of this stuff online. I would love to get some feedback on this.