The Robert Green Ingersoll Birthplace Museum in Dresden, N.Y., is described as America’s only freethought museum. It tells the story of the noted 19th-century agnostic orator, including his most famous speech, “Ghosts.”

Arboretum Cohousing is a 40-unit development in Madison, Wis. It includes affordable housing through Habitat for Humanity of Dane County.

Delaware Street Commons, under construction in Lawrence, Kan., is the first cohousing project in the state. It is multigenerational, uses consensus decision-making and values community and sustainability.

Project Reason is a nonprofit foundation dedicated to promoting secular values and scientific knowledge. Sam Harris is co-founder and chairman. Contact through the website.

The Tuscaloosa Cooperative Association, in Tuscaloosa, Ala., is a new group exploring environmentally sustainable cohousing for the area. Charles Nuckolls, a professor of anthropology at the University of Alabama, says the group would like to create an American village.

Orange Twin Conservation Community is a developing eco-village that grows from a record label in Athens, Ga.

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.

Based in Chapel Hill, N.C., Second Journey promotes the values of mindfulness, service and community for the second half of life. Bolton Anthony chairs Second Journey.

The Institute for the Study of Secularism in Society and Culture strives to foster understanding of the role of secular values and the process of secularization in today’s society. The nonpartisan, multidisciplinary institute is based at Trinity College in Hartford, Conn., and is part of the college’s Program on Public Values. Barry Kosmin is director.