La gente de Slo Dive ha creado una lista de 30 tutoriales para photoshop más que buenos.
Algunos tutoriales que incluyen:
Create An iPod Shuffle
Real Water Droplets
Design Beer Glass and Bottle
Realistic Decorated Wine Bottle Illustration
Design a Shiny Bass Guitar Illustration Using Photoshop
Realistic Cigarette Packet
Create an Awesome Grass Texture in Photoshop
Grass Tutorial
Swiss Army Knife Tutorial
How to Create a Delicious Green Apple Illustration
Entre otros que pueden ver: 30 Advanced Photoshop Illustration Tutorials