"Missile Defence" will not work but will speed up the arms race and damage international confidence.  Australia should have no part in it.

Australian Anti-Bases Campaign Coalition (AABCC) 

An Australian centre of opposition to Missile Defence.

Boost-phase interception ineffective 

Intercepting missiles while their rockets are still burning would not be an effective approach for defending the U.S. against attacks by them. July 2003 Report from American Physical Society.

Federation of American Scientists 

FAS has a Missile Defence evaluation, with resources - some rather old.

Global network against Weapons  and Nuclear Power in Space 

A leading activist international organisation. 

Missile Defence program 

Fact sheet from Arms Control Association. 

Nuclear Threat Initiative 

Has a newswire. One is on missile defence congressional hearing 17 July 2002 

OzPeace 

Has a PDF briefing paper on missile defence. 

Space Daily 

Has link to Space War and other relevant links. (Opens advertising windows. Seems related to AFP media group.) 

Union of Concerned Sciantists 

Has the best index of missile defence information and evaluation of tests.