Mission: Critical - Interactive college-level virtual lab that teaches the basic concepts of critical thinking and informal logic, such as induction, deduction and fallacies.
Ohio Center for Critical Thinking Instruction - Teachers' centre acting as a clearinghouse for organisations promoting critical thinking, global education, and conflict management.
stoneforest.org - Writings on Critical Thinking covering the areas of Philosophy, Economics, and Finance.
Think-L - Discussion list for critical thinking and related topics.
