I have some ideas for tutorials but not much time at the moment to work them out. So here are a few sites that inspired me.
http://www.photoshoplady.com/
http://www.smashingmagazine.com/2009/04/22/the-ultimate-photography-round-up/
http://psdfan.com/inspiration/25-amazing-photoshop-drawing-tutorials/
http://www.tutorialhero.com
http://speckyboy.com/2008/04/30/30-vector-tutorials-that-will-make-graphic-design-easier/
http://dzineblog.com/2008/10/3d-text-effect-tutorials.html
Have fun!
http://www.photocrati.com/the-tuesday-composition-both-near-and-far/
A complete photo course site: http://www.freephotocourse.com/
I found this blog today. It has some really easy to understand instructions about various photo techniques.
http://fotoflyblog.com/