Keith Akers is a Christian vegetarian and environmental activist who lives in Englewood, Colo. He operates the Compassionate Spirit website, which includes articles and commentary on animal welfare from a Christian perspective.

David Dion DeGrazia is a philosophy professor at George Washington University in Washington, D.C. He has written about the ethics of animal research and is the author of Animal Rights: A Very Short Introduction.

Lori Gruen is an associate professor of philosophy and of women’s studies at Wesleyan University in Middletown, Conn. Among her areas of interest is injustice to animals. As a guest on a May 11, 2004, podcast of Philosophy Talk, she discussed the morality of eating animals.

Mormons for Animals is an organization of students, faculty and others affiliated with Brigham Young University in Provo, Utah. Christopher Foster is faculty adviser.

BYU Vegetarians is an organization of students, faculty and others affiliated with Brigham Young University in Provo, Utah. Christopher Foster is faculty adviser.

Jewish Veg is the Web site of Jewish Vegetarians of North America. It is dedicated to promoting vegetarianism among Jews by linking it to Halakhah (Jewish law). Richard Schwartz is the president of Jewish Vegetarians of North America, which is based in Newport News, Va. Contact through the website.

The Society of Ethical and Religious Vegetarians promotes a plant-based diet in the belief that vegetarianism is consistent with religious teachings. Its pamphlet on vegetarianism and world religions traces support for a plant-based diet in religious scriptures and teachings. Stephen Kaufman is coordinator.

All-creatures.org promotes veganism, vegetarianism and a “cruelty-free lifestyle” based on Judeo-Christian teachings and ethics. It is run by the Mary T. and Frank L. Hoffman Family Foundation and is based in Athens, N.Y.

The Episcopal Network for Animal Welfare is a volunteer organization of clergy and lay people within the Episcopal Church who would like to raise awareness of animal welfare in Episcopal congregations.