Introduction to ZBrush 4R7
The Gnomon Workshop have announced the release of Introduction to ZBrush 4R7 with Madeleine Scott-Spencer.
Pixologic have just released ZBrush 4R6, along with the new ZRemesher retopology tool.
Eat 3D - ZBrush 4 R2&R3 - New Features - A Comprehensive Overview
Eat 3D present a tutorial DVD by Michael Pavlovich, featuring a comprehensive overview of Zbrush 4 R2&R3.