The Zygon Center for Religion and Science is dedicated to relating religious traditions and the best scientific knowledge in order to gain insight into the origins, nature and destiny of humans and their environment. The center is based at the Lutheran School of Theology at Chicago.

Leslie Ann Thompson is chief executive officer of Affirmations, a community center in Detroit for gay, lesbian, bisexual and transgender people that is Michigan’s largest.

The Metanexus Institute is a New York-based not-for-profit organization dedicated to promoting scientifically rigorous and philosophically open-ended explorations of foundational questions. William Grassie is the founder and executive director.

Christine Peterson is president, for the 2007-08 academic year, of the Lesbian, Gay, Bisexual, Transgender, Ally Alliance at Iowa State University in Ames.

Randi Barnabee of Bedford, Ohio, who underwent sex-change surgery to become a woman, is a civil rights attorney who specializes in transgender cases.

Modesto Tico Valle is executive director of the Center on Halsted, the Chicago community center for lesbian, gay, bisexual, and transgender people.

Karen Lebacqz is professor of theological ethics at the Graduate Theological Union in Berkeley, Calif. She co-authored the book Sex in the Parish.

The L.A. Gay & Lesbian Center in March 2007 started a transgender job placement program.

The San Francisco-based Transgender Law Center works statewide on behalf of transgender civil rights. Contact Carisa Cunningham.