TED (Technology, Entertainment, Design), if it is not familiar to you, is a nonprofit organization dedicated to reshaping the world through sharing ideas.
From their website:
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.
TEDWomen extends this idea by exploring how women and girls are reshaping the world.
Recordings of many TED talks are available online at the TED website and through iTunes, I energetically encourage you to check a few out. Be careful though, it can be addictive.