Privacy International
http://www.privacyinternational.org/

Covert Action Quarterly "Exposing the global surveillance system"
http://caq.com/CAQ/CAQ59GlobalSnoop.html

QA Information Security AB
http://www.qainfo.se/~lb/echelon.htm

European Parliament - an appraisal of the technologies of political control
http://www.icdc.com/~paulwolf/eu_stoa_2.htm

London Sunday Times Spy Station F83: Cracking the Menwith Codes 31/5/98
http://www.icdc.com/~paulwolf/lontimes.htm

Statewatch Magazine EU and FBI Launch Global Surveillance System 2/97
http://www.privacy.org/pi/issues/tapping/statewatch_tap_297.html

The UKUSA Community
http://watserv1.uwaterloo.ca/~brobinso/cseukusa.html

Campaign for the Accountability of American Bases (CAAB)
http://www.gn.apc.org/cndyorks/caab/index.htm

Codename : ECHELON
http://www.qainfo.se/~lb/echelon.htm

Electronic Privacy Information Center
http://www.privacy.org/

Spies like US and Cooking up a charter for snooping, by Simon Davies The Daily Telegraph, London, 16 December 1997
http://www.telegraph.co.uk/et?ac=000140326706927&rtmo=Qzx0p30R&atmo=kqNLeoJp&P4%5FFOLLOW%5FON=%2F97%2F12%2F16%2Fecspy16%2Ehtml&pg=/et/97/12/16/ecspy16.html

Campaign for Nuclear Disarmament
http://www.gn.apc.org/cndyorks/mhs/index.htm