See Beliefnet’s gallery of “Doubters Who Changed the World.”

Read a Guttmacher Institute study published May 28, 2013.

Read a February 11, 2013 about the future and significance of the Pope’s Twitter account in the wake of his resignation.

Read a January 24, 2013 article from CNET about Pope Benedict XVI’s influence on social media in the religious sphere.

Read a Dec. 11, 2012 from The Washington Post about the Pope’s use of social media and it’s greater significance to the social media world.

Visions in Action is a Washington, D.C., faith-based organization that provides abstinence and faithfulness programs and other AIDS services in Africa under a government contract.

Rosalind Petchesky is a Distinguished Professor of Political Science at Hunter College and the Graduate Center of the City University of New York and author of several books on reproductive health, including Global Prescriptions: Gendering Health and Human Rights (Zed Books, 2003).

Mala Htun is professor of political science at the University of New Mexico in Albuquerque. She wrote Sex and the State: Abortion, Divorce and the Family Under Latin American Dictatorships and Democracies (Cambridge University Press, 2004).

Stephen Ellingson is assistant professor of sociology at Hamilton College in Clinton, N.Y., and co-editor of Religion and Sexuality in Cross-cultural Perspective (Routledge, 2002).