Inventors Insiders (http://www.fromusalive.com/invent/invent.htm ) offers a variety of online streaming videos. (Hint: It helps to have a faster modem/Internet connection.) You can view shows covering intellectual property, trademark issues, what to do about patent violations, and ten rules for making money with your invention, among others.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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.