YouTube has an educational side, full of lectures from university/college professors and other leaders in the intellectual world. This is one example of the quality of information you can find when you look for it.
"TED is a small nonprofit devoted to Ideas Worth Spreading." Innovators from around the world are invited to speak about topics ranging from business to art to nutrition. Check out the list of business-related talks at this link. Here's one example of what TED has in store for you.