Who doesn’t love templates and tutorials! Photoshop backgrounds, textures and icons | PSDGraphics.
10 Essential Tips for Working with Selections in Photoshop | CreativePro.com.
How to Straighten Photos Taken at an Angle | CreativePro.com.
Splash an Image with Water Droplets Using Photoshop | CreativePro.com.
How to Extract Images with Hair Using Photoshop’s Refine Mask | CreativePro.com.
Style.com Photoshops Pants At Jason Wu Show. They call this a good use of photoshop.
We cover this a bit in 3d modeling class but everyone should know about it. You can do everything from putting a label on a 3d can and moving it around to importing 3d objects and painting on them. Using 3D Tools in Photoshop CS6