Create "dynamic sparkles" which adhere to the highlight features of an element...

Create a Star Trek Transporter effect using Trapcode Particular with few more plug-ins

The AutoTitles preset automates the animation of trailer titles. No more keyframes, autodetecting of layer start/end, compatible with logos, videos, etc

Learn how to rig a still image using the Puppet Pin tool and animate it 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

The title says it all. A couple explosion projects made with Trapcode Particular.

Red Giant TV 15: Aharon Rabinowitz shows you a technique for placing layers inside the middle of a particle system - crucial to truly integrating your CGI effects with your live action footage or motion graphics.

"when I pre-compose a layer I sometimes want the layer to begin at the start of the new pre-composition and not maintain its original in-point."

Here is a project file that adds an anamorphic stripe and star around the standard AE lens flare.

Arranging many images or videos into a grid can be quite a tedious process if you do it manually because you generally want to tweak spacing and size as you go...