USING A LIGHT METER
Ryan E. Walters gives a very good explanation of why a light meter is still a valuable tool for cinematographers, even in the digital age. He then delves into how to use one. This is good information to have.
ARE ADS BECOMING THEIR OWN SHORT FILM FORMAT?
An interesting and legitimate point is presented here, along with video samples to support the question. It's great inspiration for those who favor short form filmmaking.
Be sure and check all the links to other commercial spots that users have posted in the comments section.
TUTORIAL: COMPOSITION AND LENS CHOICE
Solid info, but even better are the split screens of every take which show the BTS and final shots side-by-side. Visuals like that are invaluable for filmmakers in training. Lots to soak up in this piece.
10 TOOLS THAT WILL SAVE YOUR LIFE
A bit over the top with their title perhaps, but this is an excellent rundown of must-have tools for filmmakers.
COLOR GRADING CONSIDERATIONS
It's titled tutorial, though it's not. But there are plenty of those online, and even this filmmaker has one on his channel.
But what this video does offer is a very good overview of things to consider when shooting if you plan on grading the footage. His broad stroke advice on the subject is excellent.