RisikaFox wrote:EDIT: So... I was thinking of trying to make a Wild Knuffel, and I was looking through the tutorials. What I didn't see were any tutorials on light/shading. Can anybody recommend a good one?

Depends on what kind of tutorial you're looking for, if you want to learn how to put shadows on the picture most of them will mainly tell you to keep light source in mind ;) There is quite a lot of tutorials for light/shadow on internet, if you want some in-depth informations:

http://idiotsguides.com/static/quickguides/artphotography/drawing_101_seeing_light_and_shadows.html

http://www.drawinghowtodraw.com/drawing-lessons/improve-drawing/drawing-lights-shadows.html

http://www.artinstructionblog.com/drawing-lesson-a-theory-of-light-and-shade

http://www.dummies.com/how-to/content/drawing-light-and-shadows.html

Of course on chibis you add less details and shading/light doesn't need to be exposed and as detailed as on realistic stuff.

This one ain't bad since it focuses on cartoon drawing:

http://www.drawinghowtodraw.com/stepbystepdrawinglessons/2011/09/17191/

Light and shadows on face (I'd consider this one most useful for basic chibi/knuffel drawing):

http://telophase.deviantart.com/art/Quick-n-Dirty-Light-on-Faces-21989504

Nice video based on manga drawing:

http://www.wonderhowto.com/how-to-draw-shadows-manga-303552/