I am sure you already have heard about TEDx Talks by now. I am a huge fan of them and here is another reason for you to head over to ted.com and find out more about them
A TEDx Talk is a showcase for speakers presenting great, well-formed ideas in under 18 minutes.
So they are short, concise, and usually very funny. Here is one example about a library:
I watched this TED Talk and thought you would find it interesting.
Michael Bierut: How to design a library that makes kids want to read