Read a Jan. 29, 2013, Huffington Post essay, “So We Are a Christian Nation?” in which the author explores the different Christian traditions present in American politics.

Shamash, a project of Hebrew College Online, maintains a kosher database and information on Jewish books, the Holocaust and the Tanakh, or Hebrew Bible. It includes links to all things Jewish on the Internet.

ReligiousTolerance.org has an extensive section on Jews and Judaism, including descriptions of recent controversies, including Christian Zionism, missionary efforts aimed at Jews and recent acts of anti-Semitism.

Judaism 101 is a general clearinghouse of information about Judaism run by Tracey Rich, a Jewish layperson. It contains descriptions of the Jewish calendar, the Hebrew alphabet, holidays, life-cycle events, rituals, observances and much more.

The Jewish Virtual Library is an online Jewish encyclopedia with 13,000 articles and 6,000 photographs on topics ranging from anti-Semitism to Zionism as well as statistics on numerous aspects of Jewish life.

Beliefnet, a multifaith religion website and online community, maintains a section on Judaism that includes news articles, essays, blogs, how-to’s, discussions and reviews.

Read all about house churches and the reason behind their prominence and popularity in the U.S.

David Greenberg is an associate professor of history, journalism and media studies at Rutgers University in New Jersey.

Ronald Pagnucco is an associate professor of peace studies at College of St. Benedict/St. John’s University in Collegeville, Minn. His research interests include the connection between religion, politics and peace.