Photo Restoration

Here is a good video demonstrating photo restoration techniques and tools with Adobe Photoshop CS5.5. Here is the link: http://tv.adobe.com/watch/no-stupid-questions-with-colin-smith/photoshop-photo-restoration/

Resolution Video

Below is a great video that covers resolution with Adobe Photoshop posted by Mike Mchugh.


Here is another link from Adobe explaining resolution in greater detail:
http://helpx.adobe.com/en/photoshop/using/image-size-resolution.html