Tutorials
Web Design Library
http://www.webdesign.org/
Web Design Library has everything you need, the tutorials cover everything from Photoshop, Flash, Website Design, Typography and more. This site has helped me develop a better understanding of Photoshop and what could be done with it.
Spoon Graphics
http://www.blog.spoongraphics.co.uk/
Chris Spooner is a designer who has a love for creativity and enjoys experimenting with various techniques in both print and web. His site offers many tutorials that help teach you the ins and outs of Photoshop and other Adobe Design programs.
CG Textures
http://www.cgtextures.com/
This is an amazing site which offers hundreds of free textures. Pretty much any kind of material or texture you can think of is on this site. It will definitely come in handy once you start getting more creative with Photoshop.
