5 Essential Infographics For The Beginner Photographer infographic cheat sheets perfect for any amateur photograper.
Photography 101 for Have you used manual Mode on your camera and was disappointed by the results? Here is a nice cheat sheet to help you out!
Fstoppers - Photography News and Community for Creative Professionals
Color Theory Fundamentals for Digital Photography Adapted from The Essential Color Manual for Photographers (Rotovision) By Chris Rutter
Film photography basics
The color wheel explained (+playlist)