Khan Academy
Khan Academy: Physiological Stress Response to Cuss Words
Practice questions over physiological stress response to cuss words.
Other
Crow: Resources for the Teaching of Social Psychology
This page provides links to several subcategories of social cognition such as prejudice, persuasion, attitudes, and altruism. Once you click on the topic you have a variety of sources to choose from for more information.
Other
32 Keys: A Collection of Ideas About Life: Attitude
This site provides a collection of quotes about attitude and positive thinking.