I just found this collection of on-line videos that come out of the annual conference put on by TED (originally standing for Technology, Entertainment, Design). It’s quite a collection of over 200 talks by leading researchers, entrepreneurs, and the like. The talks can be accessed by theme, for example, there is a How The Mind Works theme and a Rethinking Poverty theme.
They are into “spreading ideas” but also pause to ask themselves, Is Ted Elitist? (Their answer: yes and no. Hey, it does cost $6000 to become a member, but the videos are free.)
Here’s a video from Vilayanur Ramachandran, the neurologist and writer.