• http://www.illustrationfriday.com/

A great imagination inspiration.

• http://castera.net/Moeb/

Moebius ~ French comic artists that tells insatiable stories.  Gorgeous work.

• http://cornered.co.nr/

Cornered creator Mike Baldwin is a fantastic blend of old schooler Herman and timeless Far Side Cartoons.  Not to mention incredibly prolific and a great source of advice.

• http://www.stumbleupon.com/

Endless.