Leonard Susskind's brilliant introductory lectures on Quantum Mechanics from a Quantum Information stand point. If you have 90 minutes, check out the first lecture in the series. The first 8 minutes alone are well worth watching for Susskind's explanation of why modern physics appears so strange. His imagination, creativity, and force of thought are on full display in this lecture.

Leonard Susskind has made a number of important contributions to modern quantum theory and is one of the fathers of string theory.

Via Sean Carol.