This site has some of the best art tutorials out there. You can find almost any media here as well as full explanations for the tools and supplies needed to work with various art media.
If you're trying to up your perspective drawing skills, this site has hundreds of 1,2, and 3 point perspective videos to draw structures realistically.
Looking for some fun while learning to draw and paint? Steve is a western artist by trade and he works primarily in oil and watercolor, with some sketching on the side.
Lisa Ann Watkins is a colored pencil artist specializing in wildlife art and pet portraits
The Oil Painting Techniques: Fat over Lean, Imprimatura Part 5/7
Old Masters Academy
Watch this Russian master create the most beautiful landscapes. Yushkevich Viktor Nikolaevich is a contemporary Realist painter who is magnificently relaxing to watch paint.
Stuart Davies is British oil painter whose specialty is creating the illusion of detail without actually painting detail. He has tons of tutorials about how to paint landscapes and portaits using oil paint.