Here's a site you might find interesting. Its called TED which stands for Technology, Entertainment and Design. They describe themselves as a non-profit devoted to Ideas Worth Spreading. Apart from sponsoring an annual conference for which they charge such an exorbitant fee that only the wealthy could ever hope to attend, they also make their content available by on line video. Kind of like YouTube for the rich and famous. The method of presentation is by means of roughly fifteen minute talks. They have a catalog of hundreds of different subjects, some familiar and some obscure. The topic is distilled down to a fifteen minute monologue from the various advocates of the different ideas. If you like learning about new things, but you suffer from a short attention span, then this site is for you. As a warning, their topics tend to lean toward the progressive, which is code for left wing aka liberal. But that doesn't prevent them from offering an eclectic mix of very interesting ideas. A veritable smorgasbord of knowledge. Here's just one example. Below you can find a link to the website.
Go to TED