Here's a site for some advanced Photoshop technique tutorials ^_^.
Site: http://psdtuts.com/category/tutorials/
Name: Spoonfed Photoshop Tutorials
Description: This website is VERY comprehensive, from painting, textures, etc. A lot of the tutorials are very detailed and require a good working knowledge of photoshop to use them. It is definitely a great start if you want to begin the photoshop-ing refinement process. If you use Manga Studio (I had a lot of difficulty with color in 3.0, but the 4.0 version fixes this), you can use the Tones feature to save your texture/pattern creations and apply them with a Paint/Fill/Brush tool. Level: Intermediate/Advanced.
For the simpler, anime-style stuff, I usually look this guy up:
Site: http://jp.youtube.com/user/ArtinArt
Name: ArtinArt (How to Draw Anime Tutorials)
Description: He does some really good work with Open Canvas, which is similar in many ways to Photoshop. Although mine aren't as good as his, the videos are fairly simple with speed-thru step-by-step process. It's good for referencing lighting and shadowing effects. Level: Beginner/Intermediate
I hope you guys find this useful.

