Kathleen Carley is a professor of organizational sociology at Carnegie Mellon University in Pittsburgh. Among her areas of study is the use of social networks

Glenn Shuck is an assistant professor in the religion department at Williams College in Williamstown, Mass. He has said that the trend of tweeting and using other social networks during religious services is likely to grow, especially among emerging churches.

The Rev. Nathan D. March created a social network site for Prince of Peace Catholic High School Youth Ministry of Lewiston, Maine, using Ning.com.

Mars Hill Church in Seattle uses its own social network, The City, to keep members of its several campuses connected. Mark Driscoll is pastor.

The Catholic Diocese of San Jose, Calif., uses Facebook and Twitter to stay in touch with local Catholics.

Holy Cross Evangelical Lutheran Church of Fairfield, Ohio, uses Facebook to connect with its members and lists that under the church’s ministries. The church also links to the ELCA’s Imagine Yourself social network. Timothy R. Swanson is reverend.

Temple Beth Kodesh in Boynton Beach, Fla., has a Facebook page administered by Rabbi Michael Simon.

Southwest Christian Church in East Point, Ga., uses its Facebook page for a variety of things, including evangelization.