Christian Men’s Network is a Christian ministry for men, training them toward their goals as religious leaders in their families, churches and cultures. Contact through the website.

Read an April 5, 2010, column by R. Albert Mohler Jr., president of the Southern Baptist Theological Seminary and a leading voice for Christian conservatism, rejecting suggestions of a “tax revolt” like that advocated by some conservatives and Tea Party supporters.

Kenneth Pennington holds the Kelly-Quinn Chair of Ecclesiastical and Legal History at the Catholic University of America and is an expert in church history and canon law. He has written extensively about the papacy.

The Rev. Mark Morozowich is dean of the School of Theology and Religious Studies at The Catholic University of America in Washington, D.C. He can discuss Benedict’s legacy, particularly his contribution to the Eastern churches, and general topics related to the Vatican. Morozowich is an authority on early Christian liturgy and eastern Churches (Orthodox and Catholic).

Monsignor Kevin Irwin is professor of liturgical studies at the Catholic University of America. He can discuss the progression of Benedict’s views on human stewardship of natural resources in his major discourses of moral teaching.

The Rev. Matthew Fox is a former Dominican priest who was silenced by the Vatican in 1988 for his theological writings. Fox is now an Episcopal priest. He is the author of a 2011 book, The Pope’s War: Why Ratzinger’s Secret Crusade Has Imperiled the Church and How It Can Be Saved.

Image Books, a division of Random House, has published many of Pope Benedict XVI’s English-language books, including his most recent. In addition, Image published the Spanish-language edition of The Infancy Narratives in the United States in February 2013.

Read the text of Pope Benedict XVI’s resignation announcement.

NBC News posted a timeline of the pope’s life on Feb. 11, 2013.