The Critical Thinking Community
http://www.criticalthinking.org/

Critical thinking is essential if we are to get to the root of our problems and develop reasonable solutions. After all, the quality of everything we do is determined by the quality of our thinking.
Whereas society commonly promotes values laden with superficial, immediate "benefits," critical thinking cultivates substance and true intellectual discipline. Critical thinking asks much from us, our students, and our colleagues. It entails rigorous self-reflection and openmindedness - the keys to significant changes.

Critical thinking requires the cultivation of core intellectual virtues such as intellectual humility, perseverance, integrity, and responsibility. Nothing of real value comes easily; a rich intellectual environment - alive with curious and determined students - is possible only with critical thinking at the foundation of the educational process.