An interview with Australian philosopher and professor David Chalmers discussing his theory of consciousness, the hard problem, and the explanatory gap.
Chalmers also has a wonderful online collection of academic papers, philosophical essays, and scientific articles over at Consc.net/online: a incredible resource for anyone interested in cognitive psychology, neuroscience, artificial intelligence, or philosophy of mind.
I have also written about my personal thoughts on this subject in some of my articles. In particular I recommend:
1. The Hard Problem Of Consciousness: Is Science In Need Of Another Cognitive Revolution?
2. The Epistemic Gap, Psychology, and The Scientific Method.
3. Thoughts On The Nature of Reality, Experience and Meditation