Debórah Dwork is a senior research scholar with the Strassler Family Center for Holocaust and Genocide Studies at Clark University in Worcester, Mass. She is an expert on Holocaust history and education.

Randolph L. Braham is director of the Rosenthal Institute for Holocaust Studies at the City University of New York. He is author of The Politics of Genocide: The Holocaust in Hungary (Wayne State University Press, 2000) and The Vatican and the Holocaust (East European Monographs, 2000).

Congregation Or Atid, a Conservative synagogue in Richmond, Va. conducts a “Switch Day,” when members take the shifts of Christian volunteers at nearby Beth Sholom Nursing Home.

Since 1990, Cedar Village, a retirement and nursing home in Mason, Ohio, has held a “Mitzvah Day” every Dec. 25, in which Jewish staff members volunteer to work for Christian staffers. Contact Rachel Festenstein, director of marketing and community outreach.

American Jewish World Service “works to realize human rights and end poverty in the developing world.” AJWS founded the Save Darfur Coalition, an alliance of more than 170 faith-based, advocacy and humanitarian organizations.

John C. Danforth, an Episcopal priest and a former U.S. senator, has served as special envoy to Sudan under President Bush and also as U.S. ambassador to the United Nations from 2004-2005.

The United States Holocaust Memorial Museum in Washington, D.C., commemorates those who died in the Holocaust and strives to confront bigotry and genocide throughout the world today.

Human Rights Watch is an independent, nongovernmental organization dedicated to protecting human rights worldwide. Contact HRW via one of its local offices.

Ricken Patel is founding President and Executive Director of Avaaz, “a global web movement to bring people-powered politics to decision-making everywhere.” Avaaz has more than 20 million subscribers and activists.