Photoshop Tutorials

[steve_d555]

http://www.pslover.com/

http://www.tutorialman.com/

http://www.photoshopsupport.com/tutorials.html

http://www.photoshopgalaxy.com/

http://www.deviantart.com/view/3131869/ <--- Good Simple Planet Tutorial

http://www.deviantart.com/deviation/11885274/ <--- Advanced Planet Tutorial

Browse around deviantArt for some more good ones.