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

Berlin Masjid in Berlin, Conn., has a Facebook page that is administered by two college students and Sohaib Sultan, an Islamic college chaplain.

An October 2009 Religion News Service story, posted at Crosswalk.com, discusses the issuing of a “digital fast,” and it includes links to columns by Christian leaders discussing the pros and cons of social networking.

Observing a “fast” from Facebook and Twitter and even email is becoming a popular spiritual practice — at Lent, for example — as shown by this National Public Radio story from March 2009.

Observing a “fast” from Facebook and Twitter and even email is becoming a popular spiritual practice — at Lent, for example — as shown by this Star-Ledger story from March 2009.

In his message for the Catholic Church’s World Communications Day of 2009, Pope Benedict XVI also cautioned that if “virtual connectedness becomes obsessive, it may in fact function to isolate individuals from real social interaction while also disrupting the patterns of rest, silence, and reflection that are necessary for healthy human development.”

Read an Oct 10, 2009, Houston Chronicle article about pastors encouraging their congregations to tweet during sermons.

Read a column by Henry G. Brinton, pastor of Fairfax Presbyterian Church in Virginia, about social networking’s effect on religion. The column appeared June 20, 2010, in USA Today.

Read “Why I lead an online synagogue,” an Oct. 4, 2010, column at CNN.com’s Belief Blog by Rabbi Laura Baum, head of OurJewishCommunity.org.