Web-based discussion groups are growing in popularity among engineers looking for not just information, but informed opinion to go along with it. The Fluid Power Society hosts one of the more lively discussion boards on fluid power that we've found on the web. Check out http://admin.ifps.org/wwwboard.html, where you'll find recent postings on ASME training, a hydraulic-powered bush hog, and biodegradable hydraulic oil, to name just a few topics covered.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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.