TED is this annual conference where people make these really great 20 minutes presentations. They come from all walks of life, but they are all smart. The presentations are intended for a small general audience, not a group of experts. TED's tagline is "Ideas Worth Spreadings," and they generally are.
Fortunately, the folks who run the conference have posted all of the talks online. For free, and going back years!! What's not to love?
TED is certainly more thoughtful than 99% of what you'll find out there on the Interwebs. High quality speakers with high quality content.