Photography:
Beginners: 
12/06/16 Learn How To Use A DSLR Camera, With This Nifty Web Tool (via Wired) 

Storage: 
12/07/16 The Do's and Don'ts of Memory Cards: Tips for Photographers (via PetaPixel) 

Theory:
03/27/18 WHAT ARE SCREENS DOING TO OUR EYES—AND OUR ABILITY TO SEE? (via Wired)