Below are some of my YouTube channels, mostly devoted to education -- I love teaching.
This is my most popular YouTube channel.
I teach people how to solve the Rubik's Cube, from beginner's to advanced methods, and also how to solve it blind, with one hand, etc.
Popularity: ~8000 subscribers
In this channel I attempt to teach people about how fractal generating algorithms work, but in terms that a layman can understand.
The channel is not too popular, but I did not expect too much, given that I teach math :)
Popularity: ~250 subscribers
I post my programming videos here.
In the near future I am also thinking about starting some tutorials on development in Python.