Brian over at Elite by Design posted this list of 23 Incredible Photoshop Tutorials way back in March but I just stumbled upon it today. I was especially intrigued by the glass ball tutorial and the one on creating 3D tentacles. Less so by the tutorial showing you how to place a hot chick on a muscle car.
Lists like this seem fairly popular. Are they useful? Have you found any you dug and would like to share?