Top-Notch Adobe Photoshop Sites
Adobe Photoshop Killer Tips
A new video tutorial every day. Brought to you by NAPP.
DesignsByMark.com - Photoshop Tips & Tutorials
Mark Monciardini offers free tutorials and downloads, and Photoshop training on CD and DVD.
Digital Mastery Seminars & Training
Ben Willmore is an excellent trainer. His three-day Photoshop training seminars are offered around the country with topics covering Working Foundations, Production Essentials, and Creative Explorations.
Lunacore.com offers Photoshop tutorials, tips, frequent asked questions, training advice, articles and links to all kind of Photoshop related resources.
National Association of Photoshop Professionals
NAPP is an educational organization for Photoshop users. Membership includes a subscription to Photoshop User magazine.
Regularly posts images which you can alter how ever you like and post it for others to view, vote, comment and submit their own versions.
Russell Brown Tips & Techniques
Adobe evangelist Russell Brown offers several excellent tips and techniques in PDF and QuickTime movie format.