The Humanist Society certifies humanist celebrants. It’s based in Washington, D.C. Sarah Ameigh is communications and policy assistant.

MetLife Mature Market Institute in Westport, Conn., conducts research for the insurance giant Metropolitan Life, and knows the demographics of people approaching retirement. Contact Christine Bonney in the company’s New York media relations office.

The Humanist Institute explores humanist values and trains future leaders. Its seminars are held primarily in New York City and Washington, D.C. Kendyl R. Gibbons and Carol Wintermute are co-deans of the institute. Contact through the website.

FreeThoughtAction aims to spread the message of rational thought through billboards and other means and thereby grow the ranks of the freethought community.

The Foundation Beyond Belief is a charitable and educational organization created “to focus, encourage and demonstrate the generosity and compassion of atheists and humanists.” Each quarter the foundation designates 10 charities to be recipients of its members’ donations. Dale McGowan is executive director.

Enlighten the Vote is a nonpartisan political action committee working to elect atheists. Ellen Johnson is executive director. Contact through the website.

Camp Quest was established in 1996 as the first residential summer camp in the U.S. aimed at children from freethinking families. Amanda Metskas is executive director.

The American Ethical Union espouses “deed before creed.” It neither affirms nor denies a belief in God and has no set theology or doctrines about life’s mysteries. Bart Worden is executive director.

Skeptic magazine is a publication of the Skeptics Society. It is a leading publication of skeptical inquiry.