David Dollahite is a professor of family life at Brigham Young University. He studies how religious beliefs and practices affect family relationships.

Melissa Brown is a part-time instructor at Indiana University’s School of Public and Environmental Affairs. Her research focuses on fundraising and charitable giving.

Ted A. Campbell is an associate professor of church history at Southern Methodist University in Dallas. He is the author of The Gospel in Christian Traditions (2008).

The Association of Statisticians of American Religious Bodies is an organization of statisticians and researchers who collect and publish information about American denominations and faith groups. Every 10 years they publish the Religious Congregations Membership Study, the last of which appeared in 2010.

July 13, 2013, Examiner.com article about the rise of paganism in the United Kingdom and the Church of England’s response.

Matt Smith is pastor of Barabbas Road Church in La Jolla, Calif. He instituted a fitness ministry to attract new church members when other ministries failed.

The American Community Gardening Association (ACGA) works build community by increasing and enhancing community gardening and greening across the United States and Canada. The ACGA works with churches and synagogues to plant organically grown fruit and vegetable gardens to help feed poor communities.

Steve Reynolds is pastor of Capital Baptist Church in Annandale, Va., and author of Bod for God: The Four Keys to Weight Loss (2009). He urged his congregation to join him in a Christian-themed weight loss program. Reynolds eventually lost 100 pounds.

First Place 4 Health is a Christian weight-loss program that began as a ministry at Houston’s First Baptist Church and now has groups in 12,000 congregations nationwide. The website has a search engine that allows a state-by-state search of existing groups and meetings. Vicki Heath is national director.