Edge (which I originally learned about from David Deubelbeiss) brings together “big thinkers” to both talk about “big” issues and also write about them. Their videos are intriguing, though the presentation style is just “talking heads.” I found their Question Center far more intriguing, where they annually pose a question and then get tons of key players from around the world to answer it. For example, this year’s question was “What scientific concept would improve everybody’s toolkit?”

I’m adding it to The Best Teacher Resources For “TED Talks” (& Similar Presentations).