Mariano Steiner has posted a reel of his recent ZBrush sculpts.
Art for Games - Memory Folds in Clothing Tutorial
Art for Games have posted a free tutorial on creating memory folds in cloth, using ZBrush and Photosohp.
ZBrush SIGGRAPH 2013 Recap
Here is a massive recap of ZBrush's presentations from Siggraph 2013.
ZScripting with ZBrush - Eat 3D Tutorial
Eat 3D have released a video tutorial on ZScripting with ZBrush.