Ever wonder what the Exposure Triangle is? Well here's your answer:
Video by Some Stuff Explained
Video by Wolfcrow
Here is a great series of videos from Adorama everything you could possible want to know about the Exposure Triangle is covered.
Exposure Triangle in Practice.
Understanding Exposure Part 1: The Exposure Triangle
Understanding Exposure Part 2: The Exposure Triangle
Understanding Exposure Part 3: The Exposure Triangle
Understanding Exposure Part 4: Shutter Speed
Understanding Exposure Part 5: Aperture Values
Understanding Exposure Part 6: Auto ISO
Videos by Adorama.
Here is another great video on the Exposure Triangle from SLR Lounge:
Video by SLR Lounge
Video explaining the "three basics" of photography:
Video by Matthew Gore
Here is another article on this topic from fstoppers.
Exposure In Photography.
More photography resources.
More photography videos.