Photoshop

So, I finally purchased my sweet sister purchased photoshop CS5 with her student discount and is letting me borrow it (permantly).  I had a really really old version before this (version 7, anyone?), so it's nice having software that other people actually use.  Also I thought it was time to invest in some nice software to pair with my DSLR camera.  I had a lot of fun Thursday, going through the Pioneer Woman's photoshop page and practicing the tutorials.  I know it's going to take some time and effort, but I think I would rather learn through this method as opposed to taking a class.  I like the idea of going at my own pace, at my own time.
So my question is this:  What other online photoshop tutorials have you found helpful? 

Photoshop