- Alan Robock on Nuclear Winter
- Armageddon Online
- Australian Spaceguard Survey
- Beyond the Holocaust
- Cambridge Conference Correspondence
- Challenges of Nanotechnology
- Could an Asteroid or Comet Hit Earth?
- Earth Impact Database
- Existential Risks
- Exit Mundi
- Future Asteroid Interception Research
- Horizon - Supervolcanoes
- Joy, to the World
- Let's Save the Future
- Musing on Beginning and End
- Remarks on the Doomsday Argument
- Science and Ethics of Human Extinction
- Spaceguard UK
- Supervolcanoes
- The Lifeboat Foundation
- Tsunami Project
- Why the Future Doesn't Need Us
- WWW Bomb Shelter