nitroamos (261075) writes "Every once in a while I find myself searching for a good science or math lecture online, a talk on the general interest level. Feynman was well known as an excellent lecturer, able to make non scientists understand him. However, there is relatively little available for viewing online. Examples of what I'm interested include Caltech Watson Lectures and Vega Science Trust. Are there any other websites people can recommend from their fields of interest?"