I thought I would compile a list of things that helped me get more serious about digital photography:
For all things about off-camera flash:
The Original Lighting 101 on Strobist
Training, Techniques and lots of Q&A:
Landscape / Applied color theory and video critiques:
Essays on photography:
Lighting and the Dramatic Portrait
Photo credits: Brad Calkins, Feng Yu.
Great list. Thank you.