Math

https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw: 3Blue1Brown is a must-wach for anyone wanting to get into higher math!

A must watch for anyone else at the intersection of math and music:  https://www.youtube.com/user/Vihart

Music

Check out my friend’s awesome music channel! https://www.youtube.com/channel/UCG5V6CvxqUXkSCKXOzv7njg

Public Speaking

https://www.youtube.com/user/Toastmasters

https://www.youtube.com/user/MarkBowden1

(list in progress)