Film Courage
With interviews with directors, producers, screenwriters and script readers this is my favorite channel for inspiration.
https://www.youtube.com/user/filmcourage
Film Riot
This DIY film channel has lots of practical information for effects, lighting, and making your indy film.
https://www.youtube.com/user/filmriot
CookeOpticsTV
This channel interviews famous cinematographers and is full of lighting tips and tricks.
https://www.youtube.com/channel/UC-Ya9gBlwOhRwtloTn1hvbA
Enjoy!