Web Sites

50 Sketching Resources for User Experience Designers Lists articles about Sketching, sketching tools, sketching templates, presentations about sketching, videos about sketching, books about sketching, sketching examples

Cardboard Modeling as a tool for (interaction) design. Includes detailed steps on how to create cardboard models. By Joep Frens, from TU/e.

How to Draw Cartoons contains a progressive set of pages illustrating basic cartoon drawing

How to Draw It is a site that contains various drawing lessons.

Sketches as Explanations by Commoncraft, uses sketches in videos to explain products, concepts and services. A good sampling that should inspire you to do the same.

Kinetic Design by Ben Hopson, involves the aesthetic design of sketches showing physical movement. For a teaser, see his videos illustrating various kinetic design sketches.