2think.org
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 Thinking World
Authors discussion topics include: becoming more creative, educating thinking children, and developing a morally enlightened world.
An Experiment in Group Learning Technology
The results of a study designed to measure critical thinking in face-to-face and computer-supported seminars.
Are You Being Brainwashed and Manipulated?
Discussion of mass manipulation techniques and how to resist them.
Association for Informal Logic and Critical Thinki
A non-profit scholarly association which aims to promote research into, teaching of, and testing of informal logic and critical thinking.
Critical Thinking across the Curriculum Project
Definitions, examples and argument analysis, from Longview Community College.
Critical Thinking Books and Software
Critical thinking products for home and classroom for use in mathematics, science, language arts, and social studies.
Critical Thinking Lab
Computer-assisted critical thinking and introductory logic course materials: texts and software.
Critical Thinking Study Topics
Student study guide on psychological manipulation, cult groups, sects, and new religious movements.
Fallacies
A guide to argument and logical fallacies.
Free thought (personal discussion)
One person's introduction to Critical Thinking, Logic, Belief, and Free Thought.
Learning Beyond, Beyond Learning
Critical thinking site for learning and knowledge.
Logical Fallacies
Online edition of Madsen Pirie's Book of the Fallacy.
Philadelphia Association for Critical Thinking
Addressing strange phenomena with the mindset, "What are the facts and what can we deduce from them?"
Quantum Leaps in the Wrong Direction: Where Real S
Book explains scientific method, and discusses how to tell science from pseudoscience. Considers UFOs, astrology, creationism, and ESP. Searchable page images.
Real-World Reasoning
A course given by Peter Suber for high-school students as an introduction to college. A good collection of on-line materials.
Resources for Indpendent Thinking
Many essays and articles covering topics related to thinking for one's self.
skepsonix
A collection of links to audio en video files, all on skeptical topics. Lectures, interviews, discussions,...
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.
The Church of Critical Thinking
Dedicated to spreading the word about cynical reasoning in established religion, politics, the paranormal beliefs, as well as anything else that people tend to accept blindly. "Your Suspicion is Our Mission".
The Critical Thinking Community
Providing a forum and resources about Socratic questioning, higher order thinking, and critical thinking. Organizer of conferences and publisher of books and academic resources for teachers.
The eJournal Website: Critical Resources
Collection of critical thinking resources. Includes links and references for important critical thinkers and historical events as well as discussion forums and an events calendar.
The Rosebrooke Company
Shows teachers and students at all levels how to use Cogetics to construct critical understanding, develop learn-to-learn abilities, and achieve raised standards.
Thinking Straight: Internet Resources
Internet resources on critical thinking, categorized under relevant headings.