I love the potential for this type of technology. Think of how long battery life has been the bane of the existence of anyone dependent on portable electronics, especially if people need then to do their jobs. There is so much energy already available that doesn't need to be created, and as researchers come up with better and more interesting ways to harvest energy, electronics will become less dependent on batteries and other energy sources. I am a big proponent of this type of work.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.