China Daily: Dangerous Space Rocks Under Watch - Astronomers say they are well on their way to finding every asteroid that poses a threat. - http://www.chinadaily.com.cn/english/doc/2004-04/09/content_321944.htm
Impact Parameters - Online calculator for cratering effects of hypothetical asteroid impacts. - http://www.lpl.arizona.edu/impacteffects/
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
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
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
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/
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/
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