Site: Blender-Café

Materials in Blender by Olivier Saraja
Deals with the Material block buttons of Blender. Highlights the following parameters and topics: Color, Speculars, Texture Mapping, Texture Channels. As practice, two mini-tutorials are also available: Modelling a glass, Material indices.

Covers: texturing

Animation effects by Olivier Saraja
The Animation Effects fully explained: Build effect, Wave effect, Particles effect and Static particles effect. Some mini-tutorials are included: Animating a Fire, Animating Smoke, Modeling Clouds or Mist, Animating a Lightning strike.

Covers: modeling, animation

Site: Scarabs

Getting started by Ian Calvert
For first time users of Blender. This teaches you the basics so that you know how to make a picture.

Covers: modeling, lighting, rendering

Simple animation by Ian Calvert
This is for blender newbies, it will teach you the basics of animation.

Covers: animation, rendering