60 Photoshop Tutorials for Photo Touch-Ups
Photoshop has tons of potential for improving photos in one way or another. No matter how much experience you have with Photoshop there is probably more that you can learn in these areas. This is a categorized collection of tutorials that will show you some new tricks for photo touch-ups.
http://vandelaydesign.com/blog/design/photoshop-touchup-tutorials/