Roy F. Baumeister is a professor and Francis Eppes Eminent Scholar in Social Psychology at Florida State University in Tallahassee. He is the author of Evil: Inside Human Violence and Cruelty.

Simon Baron-Cohen is professor of developmental psychopathology at the University of Cambridge in Britain. His research interests include empathy, and he is the author of The Science of Evil: On Empathy and the Origins of Cruelty (May 2011).

18Doors.com (formerly InterfaithFamily.com) is a resource supporting interfaith couples exploring Jewish life and inclusive Jewish communities. It offers educational content; connections to welcoming organizations, professionals and programs; and resources and trainings for organizations, clergy and other program providers.

Nov. 5, 2010, article posted on InterfaithFamily.com about adoption in interfaith relationships.

Read a column from The Nation, the liberal periodical where Hitchens wrote before he broke with that camp, in which Katha Pollitt tempers some of the praise with critical recollections of Hitchens’ drinking, writing and approach to women.

The Call & Response blog at Duke Divinity School’s website has a round-up of reactions to Christopher Hitchens’ death.

University of Alabama psychology professor Martha Crowther researches the role of spirituality across the life cycle. She is particularly interested in spirituality and health in older African-Americans.

Douglas Wilson, who participated in a series of debates with Hitchens in 2007, reflected on the death with an essay posted by Christianity Today.

Alexander P. Auchus is a neurologist at the University of Mississippi Medical Center with research interests in Alzheimer’s in non-Caucasians.