Also these audio/video resources seem good: http://www.wi-phi.com/front/Critical-Thinking http://www.wi-phi.com/front/Critical-Thinking http://argumentninja.co

Also these audio/video resources seem good: http://www.wi-phi.com/front/Critical-Thinking http://www.wi-phi.com/front/Critical-Thinking http://argumentninja.com/podcast-episodes/ http://argumentninja.com/podcast-episodes/ And "The Great Courses" has a number of courses on logic, critical thinking and argumentation.