Here are two videos which show how to control the lighting in a scene by adjusting several material channels. The diffuse and ambient amount channels govern how much light is absorbed or reflected back to the viewer. These videos show how to use them.
This tutorial walks through a couple of the rendering parameters in the Render dialog box that deal with light, specifically with radiosity/global illumination.
This is a tutorial for those new to 3D modeling. It walks through the process of creating efficient polygon data when starting with spline geometry.
This is a tutorial for those new to 3D modeling. This will help you to understand how to use the modeling tools to shape a simple object, using multiple approaches to achieve the same goal.
This is a two part tutorial that walks through an interesting little projects which helps to demonstrate some of the render dialog settings. It specifically discusses what is called radiosity or global illumination and some settings that control this function.
This set of brief tutorials walks through the creation, scene setup, and rendering of a magnifying glass object.