The new Space Technology Center, located in Mountain View, CA at NASA Research Park near the NASA Ames Research Center, opened in February as a consortium of academic, industrial, and government partners. The partnerships will focus on education, workforce development, research, and technology transfer in such fields as energy, information technology, biotechnology, sensors, and wireless communication. Among the courses offered to professional engineers is a graduate-level "Spacecraft Design" course series offered from the Stanford curriculum. For more info, go to http://researchpark.arc.nasa.gov/.
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.