Debbie Blue is a pastor and author of creative urban church in St. Paul, Minn. and founder of House of Mercy.

John W. Riggs is professor of historical theology and church history at Eden Theological Seminary in St. Louis. He is an expert on Christianity in the postmodern world.

Cary Fuller is active in the emerging conversation through her Indianapolis, Ind., church, The Dwelling Place, where her husband, Shane Fuller, is pastor. Though social media she intended to build relationships and create a safe atmosphere for questioning and debate.

J. Ligon Duncan is minister of First Presbyterian Church in Jackson, Miss. He was professor of theology at Reformed Theological Seminary (RTS) and was responsible for teaching courses such as Systematic Theology, Ethics, Apologetics, History of Philosophy and Christian Thought, Covenant Theology, Patristics, Evangelism, and Theology of the Westminster Standards

Elaine Heath is McCreless Assistant Professor of Evangelism at Perkins School of Theology at Southern Methodist University in Dallas.

George J. Borjas is the Robert W. Scrivner Professor of Economics and Social Policy at Harvard University’s Kennedy School of Government. An immigrant from Cuba, he is the author of Heaven’s Door: Immigration Policy and the American Economy (Princeton University Press, 1999) and supports restrictions on immigration.

Roger Olson is an expert in historical theology and professor of religion at Baylor University’s Truett Theological Seminary in Waco, Texas. Olson co-chairs the evangelical theology group of the American Academy of Religion. He wrote the “theology of evangelicalism” entry in the Encyclopedia of Protestantism (Routledge, 2004).

Danielle Grubb Shroyer is pastor of Journey Community Church in Dallas. She serves on the national Emergent Coordinating Group in the area of social justice. She is the author of The Boundary-Breaking God:  An Unfolding Story of Hope and Promise (Jossey-Bass, 2009).

Alan Creech has been blogging about his life in the church since 2002; he is a founding member of Vine + Branches Christian Community, an emerging community in Lexington, Ky.