Autodesk have annexed Exotic Matter's Naiad. Here's a demo of the final version of standalone Naiad.
Gnomon - Design Techniques for 3D Concept Art
The Gnomon Workshop present Design Techniques for 3D Concept Art, a DVD tutorial by Gavriil Klimov.
Autodesk Smoke 2013 - Features Webinar
This webinar showcases the tools that Autodesk's Smoke 2013 has to offer.