Design Suite/Tutorials

List of useful websites for design

Raster image editing like Gimp

• Gimp Users
• Pat David blog: Useful guide for editing images in Gimp
• Gimp Magazine
• How to create fonts with stone texture with GIMP and Inkscape by Maria Tatica Leandro

Vector image editing like Inkscape

• Inkscape Course
• Inkscape tutorial blog
• 2D Game Art for Programmers
• screencasters.heathenx.org
• Go Inkscape!

Desktop publishing like Scribus

• Scribus Video tutorials
• About.com Scribus Tutorials

3D modeling

• Blender Nation
• Blender Artists
• Blender Art Magazine

Animation

• Synfig Animation Studio Tutorials

Video editing

• Daniel Pocock's video editing with Blender

Others

• About CMYK - Guideline for CMYK usage.
• How to set CMYK color on a design for printing - Internal link from Fedora Design wiki