Shir Chadash is a Conservative synagogue in the New Orleans area with a Facebook page. Its rabbi, Ethan Linden, has a Twitter account.

Cornerstone Chapel of Leesburg, Va., uses Facebook and Twitter to reach its members throughout the week. Gary Hamrick is senior pastor.

Celebration Metropolitan Community Church in Naples, Fla., uses a MySpace page to connect with members. Lillie Brock is the reverend.

Masjid Abdul Muhsi Khalifah is a Brooklyn, N.Y., mosque with a Facebook page where members discuss everything from World Cup Soccer to current events and religious issues.

Congregation Beth Elohim in Brooklyn, N.Y., has an active Facebook page. Rabbi Andy Bachman is its creator.

Stephen Shields is the founder of FaithMaps. He freelances for Leadership Network, where he wrote a guide (enter “social networking” in the Keywords field) to online social networks for churches.

Jeremiah Owyang is an industry analyst at the Altimeter Group in Silicon Valley and a columnist for Forbes CMO Network. He has blogged about social network statistics and can discuss how to interpret them.

Helen Osman is secretary of communications for the United States Conference of Catholic Bishops and can discuss the conference’s guidelines on use of social networks among Catholics. Contact [email protected].

Stephen O’Leary is an associate professor of communication at the University of Southern California in Los Angeles. He wrote a chapter, “Cyberspace as Sacred Space: Communicating Religion on Computer Networks,” for the book Religion Online: Finding Faith on the Internet.