James Busby demonstrates nondestructive image flattening and reflection removal in Photoshop.
Free 3D Ram Skull Download from Ten 24
Ten 24 are giving away a free high resolution 3D ram's skull that they scanned to capture every detail.
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.