TED (Technology, Entertainment, Design) is an annual conference where geniuses get together and talk about their field of expertise. They are usually about 20 minutes each, and are filled with awesome. I learn something new with each one. You can go to http://www.ted.com/talks and explore what they offer yourself, but here I wanted to make a list of some that I've seen over the years that I really enjoyed:
How we affect / are affected by our Social Network
Creativity vs. Content providers
Creativity vs. Education system
Different types of Love (as chemicals)
Freakonomics (Specifically economics of an inner-city gang)