- The Skeptic's Dictionary
- Skeptical definitions and essays on occult, paranormal, pseudoscientific ideas and practices with references to skeptical literature. - The View from Number 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.
- Skepticism Examiner - Charles McAlpin is an open-minded skeptic who believes that evidence-based reasoning and critical thinking are necessary to distinguish between true and false claims.
- SkepticWiki - Wiki-based encyclopedia of skepticism, science and reason.
- Fortean Times - The Journal of Strange Phenomena. Online version of the print magazine.
- Eric's Skeptic Page - A skeptical look at all sorts of sciences and pseudosciences.
- X-Project Paranormal Magazine - Web e-zine featuring a series of skeptical articles.
- In Pursuit of Reality - A skeptical look at auras, Kirlian photography, reincarnation, spiritualism, astral projection, and astrology.
- 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 promotion of science.
- Word Smith Articles and Interviews - Original articles and interviews, including a skeptical interview with Uri Geller, and an examination of how skeptics allege that Geller performs his feats.
- 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.
- Zetetics Laboratory - Laboratory at the University of Nice where paranormal phenomena are studied.
- Bad Science - About well understood phenomena which are persistently presented incorrectly by teachers and writers.
- Skeptix Mailing List - Forum discussion about extraordinary phenomena. Includes post archives and subscription information.
- SIMPOS - Netherlands foundation for information on social problems and occult tendencies.
- sci.skeptic FAQ - Frequently asked questions about the sci.skeptic newsgroup.
- Skeptical References - A bibliography of materials for skeptics.
- The Skeptical Viewer - A paranormal fansite that examines paranormal claims and evidence with a critical eye.
- #Skeptic IRC - Weekly internet relay chat for skeptics.
- Skeptic's Digest - Skeptical articles about the occult, paranormal, and pseudoscience.
- Skeptical Information Links - Links to materials for skeptics, and about skepticism.
- Advanced Scientific Health - Education and resources program providing the solution to those that are sick and need help. Now open to the public after a 8 year pilot study.
- The Skeptic's Refuge - Gateway to The Skeptic's Dictionary with skeptical articles on the occult, the supernatural, the paranormal and the pseudoscientific.
- RationalSkepticism.org - A forum to discuss everything related to scientific skepticism. Specializes in science, atheism and debunking irrational beliefs.
- Skeptical Pages by Tommy Persson - Links to newsletters, organizations, and websites.
- The Skeptic Magazine - United Kingdom publication, taking a skeptical look at pseudoscience and claims of the paranormal.
- Debunker's Domain - Dedicated to debunking all manner of dubious claims.
- The Skeptic Tank - The Skeptic Tank is a BBS which maintains extensive archives on scientifically questionable groups, individuals, and ideologies. Message board and articles.
- Skeptic Friends Network - Examines a variety of claims with emphasis on debunking "creation science."
- A Skeptical Manifesto - Article by Michael Shermer defines and discusses skepticism. Includes a section that asserts a skeptic can also be open to scientific reason. Written in 1992.
- Number Watch - Monitors the media in search of misleading numbers in news, politics and science.
- Bad Language - A doctoral student presents her investigations into the paranormal and pseudo-scientific, as well as an analysis of linguistic myths.
- Crank Dot Net - Skeptic provides categorized directory, both alphabetical and hierarchical, to a variety of kooks, cranks, loons, and crackpots on the net.
- 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 are untenable."
- Danny's Skeptic Resources List - Features list and highlights of skeptical information available on the web.
- The Work of Michael Shermer - Dr. Shermer is founding publisher of Skeptic magazine, columnist for Scientific American, and Adjunct Professor of Economics at Claremont Graduate University. Site contains essays, columns, reviews and multimedia clips.
- 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.
- Skeptic World - Provides articles on the paranormal, cryptozoology, ufology, ancient monuments and the ancient world, mostly from a skeptical point of view.
- Practical Skepticism - A how-to guide for examining claims and debunking myths, math abuse, and misleading arguments.
- National Skepticism Examiner - A skeptical look at pseudoscience and media.
- TrueAuthority.com - Experts test claims on subjects including dinosaurs, creation/evolution, and cryptozoology.
- Gary P. Posner, M.D. - Founder of the Tampa Bay Skeptics.
- 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.
- Philosophical Investigations - Collaborative wiki examining current issues in science and society from a philosophical perspective.
- Skeptical Investigations - Criticism of skepticism, including information about fraud in mainstream science and questioning of the methods and motives of skeptics.
- ET NOT! - This websites debunks most UFO sightings but also questions a possible spiritual connection. Includes papers on various aspects of paranormal activity and pseudo-science.
- What is pseudoscience? - How it differs from science, how to spot it. Junk science, pathological science, quackery and pseudoscientific scams.
- SCEPCOP: The Scientific Committee to Evaluate Pseudo-Skeptical Criticism of the Paranormal - The world's first organized counter-skeptic group, exposing and debunking the arguments of pseudo-skeptics and their organizations and publications.
- Tony Youens - Skeptic articles, information, books from Tony Youens - parapsychology investigations.
- 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.
- Critical Thinking (27)
- News and Media (9)
- Weblogs (21)
- Organizations (33)