What is a great site on learning these specific drawing techniques?

I’m interested in learning drawing techniques that relate to specific cartoon sketches.

Examples: http://th06.deviantart.com/fs9/300W/i/2006/145/5/b/Street_Fighter___Shin_Gouki_by_furan_san.jpg

http://spyhunter007.com/Images/street_fighter_drawing.gif

Thanks.
Wow this section sucks. No answers at all.

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