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

The GI Rights Hotline is a group of nearly 20 non-governmental, non-profit organizations located in 11 states and in Germany that provides free, confidential and accurate information on US military regulations and practices to service members, veterans, potential recruits and their families.

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

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.

The Center on Conscience & War is a faith-based organization that advocates for the rights of conscience, opposes military conscription and serves all conscientious objectors to war. Maria Santelli is the executive director.