The resources I know of, I will add when I have more, and have scrolled through my list of bookmarks haha
Art/Comic/Cartooning:
Cartoonblock:
http://www.youtube.com/user/cartoonblock
derwent pencils:
http://www.youtube.com/user/derwentpencils
Robot Portratits:
http://www.youtube.com/user/lifeinaustin
Music:
http://www.youtube.com/user/jwcfree
Scratch (how to animate, build own games):
Turtle (programming for Kids, using LOGO)
Kodu:
http://fuse.microsoft.com/projects/kodu
http://www.homeschoolprogramming.com/
http://www.teachingkidsprogramming.com/
GameMaker (make your own game)
http://www.yoyogames.com/gamemaker/studio
Stencyl (making your own game, it’s a bit more complicated than GameMaker, made by those MIT peeps)
AI:
Learn about electronics:
3Danimation (Blender for Kids):
-coming soon-
make your own toys:
http://www.youtube.com/user/arvindguptatoys
Hacksaurus:
http://www.hackasaurus.org/en-US/
How to make maps:
http://www.google.com/mapmaker
cooking how-to:
http://www.youtube.com/user/foodwishes
Circuitry and so on:
Game reg: chemistry:
Make your own games through RPG:
http://rpg.drivethrustuff.com/product_info.php?products_id=94507&affiliate_id=296418
Dance:
Movement lifestyle: http://www.youtube.com/watch?v=28xxxSrvQ9U
Vinh Nguyen: http://www.youtube.com/user/v1nhnguyen
UrbanDanceCamp: http://www.youtube.com/user/UrbanDanceCamp
Other learning videos:
http://www.youtube.com/user/TEDxTalks