Light: A very detailed article, in several sections.

Part 1: The basics

Part 2: Light direction

Part 3: Natural Light

Part 4: Artificial and indoor light

These articles are the basis of a new book which I am in the process of writing, it is due for release in spring 2009, watch this site for updates. The book will be a comprehensive guide to lighting for artists, and will go into much greater detail.

 

Digital inking: How to ink digitally and get good results

Good Wacom technique: How to avoid the shakes when drawing with the tablet

One point perspective trick: How I did the floorboards in Rufus and Rex

Three point perspective trick: Block models as a drawing aid

Lighting in passes: A 3D technique applied to 2D.

The Monster Makeover: A Photoshop painting tutorial, featuring overlay layers