Learn some fun techniques to get interesting animation by playing with the pivot points of layers and nulls objects

Learn how to rig a still image using the Puppet Pin tool and animate it using only After Effects...

Create an underwater scene from scratch using only After Effects.

A practical application of a layer space transform.
Not very new, but still very useful.
by Dan Ebberts's resource for After Effects scripting and expressions

Eran Stern teaches you how to control the scattering of light in a composition using adjustment light.

This is a fairly simple technique often done poorly. The trick to making the 3D extrusion look as good as possible is in the way you use a custom shape layer and the way you assign textures to the extrusion.

There are a lot of ways that you can create volumetric lights in an animation

In this 3.5 minute video tip John Dickinson shows how you can look through a camera linked to a light.

Good to be placed over an existing sun...