(Click on the corresponding circle in the lower right corner of the video window to view a specific chapter.)

1. Distracted by Everything - MIT students are among the world's smartest and most wired. They constantly multitask with their tech tools.

2. What's It Doing to Their Brains? - Tests given Stanford multitaskers yield troubling results. Other research into Net use and the brain raises more questions.

3. South Korea's Gaming Craze - Some cautionary lessons from a country where Internet addiction has become a national crisis.

4. Teaching With Technology - Teachers are embracing digital media - "it keeps students engaged; new skills are needed for a new age." But, is there a catch?

5. The Dumbest Generation - The debate has just begun on whether we are losing as much as we are gaining in a 24/7 wired world.

6. Relationships - Millions of people are inhabiting the Net as if it were a real place, satisfying the urge to connect to others in online games, virtual worlds.

7. Virtual Worlds - Second Life offers a totally new reality for humans, says its creator, and IBM has begun shifting its meetings into this virtual space.

8. Can Virtual Experiences Change Us? - The US military is using virtual spaces for PTSD therapy and for flying drones in Iraq while based in a room in Nevada.

9. Where Are We Headed? - A school is organized around learning through video games - maybe its students are getting something we aren't yet able to measure or recognize.