Gregory Koukl is founder and president of Stand to Reason, an organization devoted to Christian apologetics and based in Signal Hill, Calif. He is also an adjunct professor of Christian apologetics at Biola University and has written in defense of faith against the arguments of the new atheists.

The Islamic Educational, Scientific and Cultural Organization aims to coordinate between Islamic universities, educational and scientific institutions.

The Islamic University of Ghana is an institution of high learning that teaches in areas of business, communication, religious studies, information systems and law.

100 Influential Voices from the Arab World is a project by The Center for Global Engagement at the Institute for American Values and Al-Tasamoh developed this list of scholars, thinkers, journalists and artists that influence the Arab world.

Irshad Manji is a writer-in-residence at the University of Toronto in Toronto, Canada, and author of The Trouble With Islam Today: A Muslim’s Call for Reform in Her Faith (2004). Contact via the form on the website.

Sarah Husain is a poet, activist and editor of Voices of Resistance: Muslim Women on War, Faith and Sexuality (2006). She is based in New York City.

Mona Eltahawy is a speaker, writer and commentator who focuses on issues concerning Islam. She is based in New York City.

Katherine Bullock is vice president of the Association of Muslim Social Scientists of North America and editor of Muslim Women Activists in North America: Speaking for Ourselves (2005). She is also the author of Rethinking Muslim Women and the Veil: Challenging Historical & Modern Stereotypes. She lives in Mississauga, Canada.

Paul Barrett was a reporter for The Wall Street Journal and author of American Islam: The Struggle for the Soul of a Religion (2006). He currently directs the investigative reporting unit at BusinessWeek. Contact via Farrar, Straus and Giroux Publicity.