While we have tutorials on our website, they are for tasks specific to our customers needs, in relation to getting the most from our print lab. There is a wealth of resources available for learning applications such as Photoshop from the ground up.
I will list some of those resources here.
Adobe Photoshop Elements User Guide
Adobe Lightroom User Guide
Adobe Photoshop User Guide by MakeUseOf.com
Faststone Instruction Manual
Photoshop Tutorials From Adobe
Advanced Photoshop Tutorials from PSDTuts.com
Lightroom Tutorials From Adobe