101 Photoshop tips you have to know
Natural lighting cheat sheet: front, side and back-lighting illustrated to show how the direction of light can create different moods and effects in your outdoor photography.
Exposure 101 The basics of manual shooting simplified in a "cliffs notes" type version. ISO, aperture, shutter speed. Good info for Ambassadors earning their Photographer badge.
44 essential digital camera tips and tricks-- Just because you've bought an expensive camera doesn't mean your pictures will be amazing. Good photography takes a lot of work & practice!
The Ethos of a Successful Amateur Photographer » Expert Photography