Carolyn Tripp is a marketing professor at Southeastern University, a Christian school in Lakeland, Fla., where she focuses on marketing for Christian nonprofits.

Margaret Linnane is executive director of the Rollins Philanthropy & Nonprofit Leadership Center at Rollins College in Winter Park, Fla.

Pam Erickson is vice president of procurement and corporate relations of Operation Blessing International, listed by The Chronicle of Philanthropy as one of the 400 largest nonprofits. It is based in Virginia Beach, Va.

The Lodestar Center for Philanthropy and Nonprofit Innovation at Arizona State University works to develop nonprofit leadership. Robert Ashcraft is executive director.

Bob Blincoe is the president of Frontiers, a Christian nonprofit that sends missionaries to the Muslim world. It is based in Phoenix.

Baylor University’s Center for Nonprofit Leadership & Service emphasizes faith-based nonprofits in its study and research. Jim Roberts is the director.

The Johnson Center for Philanthropy at Grand Valley State University in Grand Rapids, Mich. publishes The Foundation Review. Kathy Agard is executive director and can discuss the general health of nonprofits, including religion-based ones, in the Grand Rapids area.

Score International sends Christians on short-term ministries. It has a four-star rating from Charity Navigator and is based in Chattanooga, Tenn.

The Center on Philanthropy and Civil Society at the City University of New York has done research into philanthropy among some religious and ethnic groups in the New York area. Kathleen D. McCarthy is the director.