"Have you been looking for a way to add some extra zest to your Photoshop images? Have you wanted to find some cool Photoshop filters but didn't want to spend any of your cash? Well, I have put together a long list of Free Photoshop Plugin along with a summary of what you will find on each of these sites. Amongst all of these sites you will be able to find 1000s of Photoshop plugins and filters so I hope that you have some time on your hands. Please comment about sites that I have missed. Have fun Photoshopping."

A how-to article at instructibles.com showing how to create 3D effects using either photoshop or The Gimp.

Long list of tutorials related to Adobe Photoshop.