Epic's Tim Elek and Zak Parrish talk about implementing advanced VFX in Unreal Engine 4.
Unreal Paris - Virtual Tour
Explore a beautiful Parisian apartment running in real-time on the Unreal Engine 4.
Dynamic Lighting Gameplay with UE4 and Enlighten using Blueprints
Geomerics have posted a detailed article on how they used Unreal Engine together with Enlighten.
Substance in Unreal Engine 4 Tutorial Series
Allegorithmic have created a tutorial series that covers how to use Substance with Unreal Engine 4.