TED

As long as we talking about sharing materials from universities; how about think tanks? TED is sort of that; Technology, Entertainment, Design - the theme of this organization that brings some of the best and most inspiring people together to share ideas. TED describes itself:

We believe passionately in the power of ideas to change attitudes, lives and ultimately, the world. So we're building here a clearinghouse that offers free knowledge and inspiration from the world's most inspired thinkers, and also a community of curious souls to engage with ideas and each other.

So they have made videos of many of the presentations at their conferences available online - and, they are adding to the collection every week.