Collection of book reviews and essays, mostly on popular science, with an emphasis on science as a guide to truth. Also includes a discussion forum.
A Field Guide to Critical Thinking (Skeptical Inquirer Winter 1990)
Six rules of evidential reasoning, a distillation and simplification of the scientific method. Ignoring the vowels, the letters in the word "FiLCHeRS" stand for the rules of Falsifiability, Logic, Comprehensiveness, Honesty, Replicability, and Sufficiency.
Association for Informal Logic and Critical Thinking (AILACT)
A non-profit scholarly association which aims to promote research into, teaching of, and testing of informal logic and critical thinking.
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."
Free From Faith
Comments on religion, science and scepticism.
Tutorial for critical thinking.
Open Courseware on Critical Thinking
Over one hundred tutorials on critical thinking, logic, scientific reasoning, creativity, and other aspects of thinking skills.
Philadelphia Association for Critical Thinking
Addressing strange phenomena with the mindset, "What are the facts and what can we deduce from them?"
Propaganda and How to Recognize It
Essay on propaganda techniques.
A course given by Peter Suber for high-school students as an introduction to college.
Online book by Bob Korn promoting critical thinking. Outline, contact information.
Skeptoid: Critical Analysis of Pop Phenomena
Provides a weekly podcast dedicated to furthering knowledge by eliminating the widespread pseudosciences that infect popular culture.
So You Want to Avoid Common Logical Errors?
Gives logical errors a name and points out the most common logical errors and how to avoid them.
Wikipedia - Critical Thinking
Crowd-sourced encyclopedia article includes an overview, concepts and principles, classroom applications, and effectiveness of instruction.