Bishop Noel Jones is pastor of the Los Angeles-area City of Refuge Church, which has more than 10,000 members. He has established the FaithMate.com dating Web site for single Christians.

Valerie Jenness is a professor of criminology, law and society at the University of California, Irvine. She is the co-author of two books on hate crimes, including Making Hate a Crime: From Social Movement to Law Enforcement.

Art Gorman is pastor for single adult ministries at Bethel Church of San Jose, Calif.

Dr. Elizabeth E. Carr is a California and Paris based marriage and family therapist with a Ph.D. in spirituality. Dr. Carr has worked and lectured in nine countries across Asia, the Americas and Europe.

Brian Levin is director of the Center for the Study of Hate & Extremism, a nonpartisan research and policy center at California State University, San Bernardino. Levin is also a professor of criminal justice at the university.

Spark Networks in Beverly Hills, Calif., owns online singles services, including JDate for Jewish singles, CatholicMingle.com, ChristianMingle.com and LDSMingle.com. In its 2007 trends reports, Spark Networks said it is seeing a rise in offline events connected to its dating sites and an increased subscriber base of single parents.

Gregory M. Herek is a psychologist at the University of California, Davis. He is a well-known scholar in the areas of prejudice against lesbians and gay men, hate crimes and anti-gay violence, and AIDS-related stigma.

Neil Clark Warren, a psychologist and former dean at Fuller Theological Seminary, co-founded and chairs the eHarmony online dating service. He has written several books about relationships, including Date … or Soul Mate?: How to Know if Someone Is Worth Pursuing in Two Dates or Less.

Anna Broadway wrote Sexless in the City: A Memoir of Reluctant Chastity, published in April 2008, about being a single Christian looking for love in contemporary society. She is based in the San Francisco area.