Recommended Web Resources

idsketching.com
sketch-a-day.com
Scott Robertson 
Industrial Design Society of America
Core 77
coroflot.com
Design Sketching > Book
Feng Zhu Design
Product Design Forums
Product Design Hub
Cardesign News
Rob Jensen Design
SimKom
Thumbnail Sketching/Storyboarding
http://www.adaptivepath.com/ideas/d090908