Great online drawing tutorials

Even as a full time working artist, I am still fascinated by watching how other artists draw. Maybe because I know how difficult it is, there is nothing more impressive to me than seeing somebody who has really strong skills and makes it all look easy  I never had classic drawing training so I've been doing my best to fill in the gaps on my own via stuff like the Andrew Loomis books for years.
If you are looking for really strong drawing foundation info, you owe it to yourself to check out Stan Prokopenko's online drawing videos. He puts them out pretty regularly and they are fun and super clear to follow. You can even buy dvds with more involved content directly from his site. I don't know Stan, and I am not getting a kick back here I am just passing along a great resource that I know a lot of your will love!
Check out the vids here and I am sure you will be hooked!  www.proko.com/