Ben Mauro has posted a ZBrush video tutorial, focusing on the development of his Yukon Pit Crew project.
Mariano Steiner - Sketch Reel
Mariano Steiner has posted a reel of his recent ZBrush sculpts.
Ten 24: Free High-Res Scanned Head
Ten 24 are giving away a free high-res scanned head created using an Artec M scanner and retopologised using Lightwave 3D and Zbrush.
Eat 3D - Creating a Realistic Portrait in Maya
Eat 3D have just released an amazing tutorial on realistic portrait creation with Maya and Zbrush.