Fortean Times

The Journal of Strange Phenomenae. Online version of the print magazine.
http://www.forteantimes.com/

The Secular Web

Agnosticism, atheism, freethought, humanism, and rationalism on the Web
http://www.infidels.org

The James Randi Educational Foundation

Foundation headed by professional magician exposes psychics, faith healers, and such. Offers $1.1 million to anyone who can actually demonstrate something supernatural.
http://www.randi.org

The Skeptics Society

The Skeptics Society is a scientific and educational organization of scholars, scientists, historians, magicians, professors and teachers, and anyone curious about controversial ideas, extraordinary claims, revolutionary ideas and the prom
http://www.skeptic.com

Skepticism at Suite101

Monthly, wide-ranging articles and discussions on skepticism. Links to a wide variety of sites skeptical from scientific, philosophical, political, medical, nutrition, and other viewpoints.
http://www.suite101.com/topics/page.cfm/645

Skeptic News

Tracks new information on various skeptical web pages.
http://www.skepticnews.com/

Committee for the Scientific Investigation of Claims of the Paranormal

World-wide organization that encourages the critical investigation of paranormal and fringe-science claims from a responsible, scientific point of view.
http://www.csicop.org/

Bad Science

About well understood phenomena which are persistently presented incorrectly by teachers and writers.
http://www.ems.psu.edu/~fraser/BadScience.html

Nova: Kidnapped by UFOs?

Companion site for TV program in which believers and skeptics, including Carl Sagan, explore case histories of alien abductions.
http://www.pbs.org/wgbh/pages/nova/aliens/alienhome.html

SIMPOS

Netherlands foundation for information on social problems and occult tendencies.
http://www.stelling.nl/simpos/simpoeng.htm

Skeptical References

A bibliography of materials for skeptics.
http://www.hutch.demon.co.uk/lewindex.htm

Free Inquiry

Argues for free inquiry and thought; the philosophies of naturalism, empiricism, rationalism, and skepticism.
http://www.freeinquiry.com/

Skeptic's Digest

Here you can access the best skeptical articles on the Web about the occult, paranormal, pseudoscience and other weird things
http://www.geocities.com/skepdigest

Zetetics Laboratory

Laboratory at the University of Nice where paranormal phenomena are studied.
http://www.unice.fr/zetetique/

The Skeptic's Dictionary

Skeptical definitions and essays on occult, paranormal, pseudoscientific ideas and practices with references to skeptical literature.
http://skepdic.com/

#Skeptic IRC

Weekly internet relay chat for skeptics.
http://home.netcom.com/~bbaggins/skeptic.htm

The Daily Skeptic

Online newsletter, devoted to skeptical inquiry.
http://members.tripod.com/~JebZingo/DS/

Skeptical Information Links

Links to materials for skeptics, and about skepticism.
http://www.discord.org/skeptical/

sci.skeptic FAQ

Frequently asked questions about the sci.skeptic newsgroup.
http://www.xnet.com/~blatura/skeptic.shtml

The Skeptic's Refuge

Gateway to The Skeptic's Dictionary with skeptical articles on the occult, the supernatural, the paranormal and the pseudoscientific.
http://www.skepdic.com/refuge/

Skeptical Pages by Tommy Persson

Links to newsletters, organizations, and websites.
http://www.lysator.liu.se/skeptical/

The Skeptic's Bunker

A personal page, intended to advance logic and rational thought over blind faith.
http://www.fortunecity.com/victorian/redlion/109/skeptic.html

Debunker's Domain

Dedicated to debunking all manner of dubious claims.
http://www.debunker.com

Psychologists Educating Students to Think Skeptically

PESTS is a meeting place for educators (specifically psychologists, although anyone is welcome) to discuss issues involving skeptical thinking and ways to introduce and teach skeptical thinking in the classroom.
http://www.sc.maricopa.edu/sbscience/pests/

The Left Hemisphere

Skepticism, religion, and secularism on the WWW.
http://www.xnet.com/~blatura/left_hem.shtml

Skeptic Friends Network

Examines a variety of claims with emphasis on debunking "creation science."
http://www.skepticfriends.org/

A Skeptical Manifesto

1992 article by Michael Shermer defines and discusses skepticism.
http://www.skeptic.com/01.1.shermer-skep-manifesto.html

In Pursuit of Reality

A skeptical look at auras, Kirlian photography, reincarnation, spiritualism, astral projection, and astrology.
http://www.angelfire.com/in2/manythings/page4.html

The Surfing Skeptic

Skeptical quotes, debating techniques, secret societies.
http://home.earthlink.net/~promethean/

Criticism of Scientific Skepticism

Criticizes self-identified "skeptics," saying that their "skepticism" translates into scorn and condescension toward people and data that contradict current scientific beliefs. Gives examples of the excesses of skeptics.
http://www.alternativescience.com/skepticism.htm

Number Watch

Monitors the media in search of misleading numbers in news, politics and science.
http://www.numberwatch.co.uk/

Crank Dot Net

Skeptic provides categorized directory, both alphabetical and hierarchical, to a variety of kooks, cranks, loons, and crackpots on the net.
http://www.crank.net/

Danny's Skeptic Resources List

Features list and highlights of skeptical information available on the web.
http://dannybhoy1.tripod.com

NYTimes.com - Odds Are Stacked When Science Tries to Debate Pseudoscience

Essay. Having a debate inevitably suggests that each side has some credibility. As a result, opponents of the scientific method try very hard to appear in debates with scientists. [Requires free NYTimes.com registration to view]
http://www.nytimes.com/2002/04/30/science/30ESSA.html

Carl Sagan's Baloney Detection Kit

Tools for testing arguments and detecting fallacious or fraudulent arguments, based on Sagan's book "The Demon Haunted World: Science as a candle in the dark."
http://www.xenu.net/archive/baloney_detection.html

Astronomical Pseudo-science: A Skeptic's Resource List

A bibliography from the Astronomical Society of the Pacific, for those who want to examine with a skeptical eye some of the claims at the fringes of science that seem connected to astronomy.
http://www.astrosociety.org/education/resources/pseudobib.html

Practical Skepticism

A how-to guide for examining claims and debunking myths, math abuse, and misleading arguments.
http://info-pollution.com/skeptic.htm

TrueAuthority.com

Experts test claims on subjects including dinosaurs, creation/evolution, and cryptozoology.
http://www.trueauthority.com/

Reality Matters

Debunks religion, the origin of God, the Bible, near death experiences and paranormal contacts with spirits.
http://www.realitymatters.com/

Skeptic Report

E-zine featuring writings on skeptical inquiry and critical thinking. Also lists related books and provides links to numerous websites on topics including skepticism, alternative science, creationism, and health fraud.
http://www.skepticreport.com

Skeptical Investigations

Criticism of skepticism, including information about fraud in mainstream science and questioning of the methods and motives of skeptics.
http://www.skepticalinvestigations.org/

What is pseudoscience?

How it differs from science, how to spot it. Junk science, pathological science, quackery and pseudoscientific scams.
http://www.chem1.com/acad/sci/pseudosci.html

Tony Youens

Skeptic articles, information, books from Tony Youens - parapsychology investigations.
http://tonyyouens.com/

BookTalk

Dedicated to the advancement of critical thinking, reason, intelligence, freedom of inquiry, philosophy and the scientific method. Forums include chats with the authors.
http://www.booktalk.org/

X-Project Paranormal Magazine

Web e-zine featuring a series of skeptical articles.
http://www.icidal.com/xproject/

The View from Number 80

80 lists sites pertaining to, amongst other things, pseudoscience, flim-flam or irrational claims and tries to give them critical attention and, in many cases, a certain amount of ridicule.
http://www.btinternet.com/~eighty/

The Nasty Side of Organ Transplanting

The secrets of organ harvesting and transplanting known only to the professionals in the business.
http://www.geocities.com/organdonate

Rational Skeptics Page

Rather odd collection of skepticism-related rants
http://www.geocities.com/xx_rational_xx/

The Skeptic Magazine

United Kingdom publication, taking a skeptical look at pseudoscience and claims of the paranormal.
http://www.skeptic.org.uk/

The Crackpot Page

"Dedicated to all the Flat Earthers, Circle Squarers, Angle Trisecters, Cube Halvers, Perpetual Motion Mechanics, UFO and Elvis sighters, and all the other true believers who adamantly refuse to accept mathematical or physical proof that their convictions
http://www.phys.psu.edu/~scalise/misc/crackpot/

Eric's Skeptic Page

A skeptical look at all sorts of sciences and pseudosciences.
http://www.phact.org/e/skeptic/

The Skeptic Tank

The Skeptic Tank is a BBS which maintains extensive archives on scientifically questionable groups, individuals, and ideologies. Message board and articles.
http://www.skeptictank.org/

Bad Thinking

A site devoted to reason, critical thinking, scepticism, and freethought.
http://www.badthinking.com/