Roy Speckhardt is executive director of the American Humanist Association, a nonprofit organization in Washington, D.C., that works on behalf of the nontheistic community.

The United Coalition of Reason organizes local nontheistic groups into coalitions and then conducts campaigns aimed at raising their visibility. Jason Heap is national director.

The Richard Dawkins Foundation for Reason and Science supports “the scientific education, critical thinking and evidence-based understanding of the natural world in the quest to overcome religious fundamentalism, superstition, intolerance and human suffering.” The U.S. branch has headquarters in Washington, D.C., and is led by executive director R. Elisabeth Cornwell.

The LGBT Humanist Council is a project of the American Humanist Association. It provides support to LGBT humanists in coming out and serves as a forum for exchanging ideas.

Mid-Atlantic Cohousing is a regional clearinghouse for cohousing communities in Washington, D.C., and nearby states. Kevin Oliveau, founder of Catoctin Creek Village in Taylorstown, Va., says a common value for cohousing groups is community. While most cohousing groups are not denominational, many Quakers and Unitarians are drawn to the arrangement.

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

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.

Secular World magazine is a publication of Atheist Alliance International. It advocates for a rational, rather than a religious, approach to public policy, science, and education.

The Humanist magazine is published by the American Humanist Association. It applies the humanist perspective to a wide range of topics.