Nancy Lublin, CEO of DoSomething.Org, discusses how the next generation are doing social activism. She describes the impact of the web on social activism, making it faster, cheaper and easier to do than ever before, and argues that this has big implications for societies around the world.

Four Thought is a series of talks which combine thought provoking ideas and engaging storytelling. Recorded live in front of an audience, speakers air their latest thinking on the trends, ideas, interests and passions that affect our culture and society.

Producer: Giles Edwards.