I) Theory articles

A) Haidt & Joseph (2004) Intuitive Ethics: How Innately Prepared Intuitions Generate Culturally Variable Virtues. Daedalus, pp. 55-66. Request paper
--This was the very first article, proposing that there were four best candidates for being foundations of morality. A fifth -- ingroup -- was suggested as the next best candidate in a footnote. This article's main contribution is to explore the relationship between virtues and innateness.

B) Haidt, J., & Graham, J. (2007). When morality opposes justice: Conservatives have moral intuitions that liberals may not recognize. Social Justice Research, 20, 98-116. Request paper
--This is an academic article that should be accessible to a non-academic audience. It focuses on the difficulty that liberals and conservatives may have in understanding each other's morality.

C) Haidt, J., & Graham, J. (2009). Planet of the Durkheimians, Where Community, Authority, and Sacredness are Foundations of Morality. In J. Jost, A. C. Kay, & H. Thorisdottir (Eds.), Social and Psychological Bases of Ideology and System Justification. Request paper
--This article illustrates why ingroup, authority, and purity might be considered "moral" foundations. It shows how these concepts were at the heart of early sociological attempts to understand modernity and morality.

D) Haidt, J., & Joseph, C. (2007). The moral mind: How 5 sets of innate moral intuitions guide the development of many culture-specific virtues, and perhaps even modules. In P. Carruthers, S. Laurence, and S. Stich (Eds.) The Innate Mind, Vol. 3. Request paper
--This article goes into detail on the cognitive and evolutionary psychology of MFT. What does it mean to say that something is a "foundation" of morality?

E) Haidt, J., Graham, J., & Joseph, C. (2009). Above and below left-right: Ideological narratives and moral foundations. Psychological Inquiry, 20, p. 110-119. Request Paper

II) Empirical articles

A) Graham, J., Haidt, J., & Nosek, B. A. (2009). Liberals and conservatives rely on different sets of moral foundations. Journal of Personality and Social Psychology. Request paper
--This article presents support for our hypothesis about moral foundation differences across political ideology, using abstract assessments of moral relevance, concrete moral judgments, unwillingness to violate the foundations for money, and foundation-related word usage in the sermons of liberal and conservative churches. To see the supplemental document that goes with the article, describing confirmatory factor analyses, please click here.

B) Van Leeuwen, F., & Park, J. H. (in press). Perceptions of social dangers, moral foundations, and political orientation. Personality and Individual Differences.View paper

C) McAdams, D. P., Albaugh, M., Farber, E., Daniels, J., Logan, R. L., & Olson, B. (2008). Family metaphors and moral intuitions: How conservatives and liberals narrate their lives. Journal of Personality and Social Psychology: 95, 978-990. View paper

D) Graham, J., Nosek, B., & Haidt, J. (submitted). The Moral Stereotypes of Liberals and Conservatives: Exaggeration across the Political Divide (under review at PSPB). Request Paper

E) Koleva, S., Graham, J., Haidt, J., Iyer, R., Ditto, P. (submitted). The ties that bind: How five moral concerns organize and explain political attitudes. (Under review at Political Psychology).Request Paper

F) Graham, J., Nosek, B. A., Haidt, J., Iyer, R., Koleva, S., & Ditto, P. H. (submitted). Broadening and Mapping the Moral Domain: Development and Validation of the Moral Foundations Questionnaire. (under review at JPSP). Request paper

G) Iyer, R. (2009). Robustness of Liberal-Conservative Moral Foundations Questionnaire Differences. Blog posting at PoliPsych.com. View Article
--This posting addresses the fact that our data is not at all representative of the USA, or any nation. As Kinsey did with his many non-representative samples of sex data, Iyer tests whether our main pattern of liberal-conservative differences is robust across samples based on the many sources -- liberal and conservative -- that sent people to Yourmorals.org.

III) Publicity, blogs, and other web resources

--Here is an article by Nicholas Wade that ran on the front page of the Science section of the New York Times.

--Here is a superb essay by Will Wilkinson applying Moral Foundations Theory to the perennial problems of the Democratic party.

--Here is an 18 minute talk that Jonathan Haidt gave at the TED conference in 2008, encouraging liberals and conservatives to "take the red pill," and escape from the "matrix" of moralism in order to understand the real moral motives of both sides.

--Here is a 15 minute talk that Jonathan Haidt gave at the New Yorker 2012 conference, presenting the five foundations and encouraging New Yorker readers to understand why most of the country is not liberal.