Meteor Defense  
   An argument for reducing global tension by developing a defense against impacts with Near Earth Objects.
   http://128.192.54.192/bobk/meteor.html

Impact  
   Describes the threat of a comet impact with Earth and provides a plan of action to survive a large impact.
   http://personals.galaxyinternet.net/tunga/

The SpaceGuard UK Portal  
   National focus in the UK for studies into the threat posed to the Earth by collisions with asteroids and comets.
   http://www.spaceguarduk.com/

BBC News: Government Prepares for Space Impact  
   The UK government is to establish a panel of experts to advise on the risk of the Earth being hit by an asteroid or comet, and plans for evacuation and/or deflection.
   http://news.bbc.co.uk/1/hi/uk_politics/541376.stm

U.S. Summons Experts to Draft Asteroid Defense Plan  
   A Cincinnati Post news story about a meeting called by the U.S. government on the chances of an asteroid strike and a possible defense for it.
   http://news.nationalgeographic.com/news/2002/06/0607_020607_wirasteroid.html

CNN - Scientists Want to be Ready to Block Asteroid from Hitting Earth  
   Scientists gather to discuss ways of aggressively defending the planet from an asteroid, including detonating nukes in space.
   http://www.cnn.com/2004/TECH/space/02/24/defending.earth.ap/

Asteroid Scare Prompts NASA to Formalize Response  
   An unprecedented asteroid scare in January 2004 has prompted NASA to set up a formal process for notifying top officials in the future of any impending impacts.
   http://www.space.com/scienceastronomy/asteroid_warning_040322.html

United Press International - Finding Menacing Asteroids Is a First Step  
   Article on a meeting of space experts regarding finding and destroying a potential threat from an asteroid.
   http://www.upi.com/view.cfm?StoryID=20040224-051301-2274r

Impact Parameters  
   Online calculator for cratering effects of hypothetical asteroid impacts.
   http://www.lpl.arizona.edu/impacteffects/