Rabbi Daniel Fink leads Congregation Ahavath Beth Israel, a Reform congregation in Boise, Idaho. He is an expert on Jewish environmentalism.

Norbert Samuelson is a professor of religious studies at Arizona State University in Tempe, where he is an expert in Jewish philosophy and thought.

Rabbi Harold Loss leads the 12,000 members of Temple Israel, a Reform congregation in Bloomfield, Mich.

Shmuel Shepkaru is an associate professor of Judaic history at the University of Oklahoma in Norman, where he teaches a course on Jewish mysticism.

Lee Shai Weissbach is a history professor at the University of Louisville in Kentucky. He is an expert on small-town Jewish life in America, especially in the South, where surveys show traditional observance tends to be lower than in other areas.

Rabbi Martin Beifield Jr. leads Congregation Beth Ahabah, a Reform synagogue in Richmond, Va. He is an expert in Jewish-Christian relations and the impact of the Holocaust.

Sharon Flatto is an assistant professor in Judaic studies at Brooklyn College in New York, where she specializes in modern Jewish thought and the Kabbalah. She teaches courses in modern Jewish history and thought and in Hasidism.

Roger Brooks is a professor of Judaic studies at Connecticut College in New London, Conn. He teaches courses in rabbinic law, the Talmud and the Mishnah and has worked with the Holocaust Educational Foundation. 

Shimon Shokek is a professor of Jewish philosophy and mysticism at Baltimore Hebrew Institute at Towson University. He has written about Jewish mysticism, including the Kabbalah.