Master dDo for Photoshop with this complete overview by Wiktor Ohman.
CGschool - Arch-Vis Training in 3ds Max, Photoshop and V-Ray
CGschool provides world-class architectural visualization training in 3ds Max, V-Ray and Photoshop.
Ben Mauro - ZBrush for Environments
Ben Mauro has released a free 3D environment design tutorial using ZBrush, Keyshot and Photoshop.
Photoshop Sneak Peek - Image Deblurring
A sneak preview to an incredible upcoming tool for Photoshop, that allows deblurring of images.