Corvallis Secular Society
- The secular humanist and freethought society serving Corvallis, in Oregon.
- http://corvallissecular.org/

Military Association of Atheists and Freethinkers
- Grassroots organization that exists to provide a forum for United States service members to express their views and find a community of like-minded individuals. Articles, news, how to become a member, and frequently asked questions.
- http://www.maaf.info/

The Humanist Community
- Seeking to provide to those of a humanist or agnostic orientation the benefits traditionally provided by church groups. Events calendar and related links. California.
- http://www.humanists.org/

Atheists of Silicon Valley
- Atheist organization promoting religion-free lives and the U.S. Constitutional right of freedom from religion. News, information on upcoming events, and links.
- http://www.godlessgeeks.com/

Fellowship of Reason
- Rational, moral community based on reason. Group's history, frequently asked questions, bylaws, calendar of events, and how to join. Atlanta, Georgia.
- http://www.fellowshipofreason.com/

East Bay Atheists
- Informal groups of residents who each meet once a month to discuss atheism and religiously topical events in the area and around the world. News, meeting schedule, and contact information. Bay Area, California.
- http://www.eastbayatheists.org/

Alabama Atheist
- Opportunities for activists, news, information on upcoming events, photographs, and links.
- http://www.alabamaatheist.org/

Camp Quest
- Residential summer camp for the children of atheists, freethinkers, secular humanists, and humanists. Pictures, list of activities, and registration forms.
- http://camp-quest.com/

Atheists United
- Freethought organization working to promote positive atheism through education. Newsletter, calendar of events, forum, and how to join. Los Angeles, California, United States.
- http://www.atheistsunited.org/

San Francisco Atheists
- Friendship and activism in the Bay Area.
- http://www.sfatheists.com/

Atheists North San Diego County
- Offers information about the organization, a calendar of activities, and a list of links.
- http://www.atheistsnsd.org/

Rationalist Society of St. Louis
- Contains the history of the group, lists of articles, and links.
- http://freethought.mbdojo.com/

Brights - New York
- New York chapter of the Brights.
- http://humanists.net/wasm/BrightsNY.html

Community of Reason
- Non-profit organization for humanists and other atheists in the Kansas City area.
- http://www.communityofreason.net/

FreeThought Society of Wisconsin
- List of meetings, calendar of events, upcoming projects, and contact information.
- http://www.freethoughtsocietyofwisconsin.org/

Freethinkers of Upstate New York (FUNY)
- Regional atheist, agnostic, and humanist organization in upstate New York.
- http://www.funygroup.org/

Idaho Atheists
- Features events, issues, secular alternatives to religious groups and ceremonies, and humour. In USA.
- http://www.idahoatheists.org/

Sacramento Freethought
- Local organisations, authors, ceremonies, quiz, and FAQ. (United States)
- http://www.rthoughtsrfree.org/

Freethought Feminist
- Based in Sacramento, with links and some collected articles. Member of the Internet Infidels group.
- http://www.rthoughtsrfree.org/feminist.htm

Great Lakes Humanist Society
- Humanism, freethought, science, and ethics from Mt. Pleasant, Michigan.
- http://www.glhumanist.org/

Godless Website, The
- Humanist Association of San Diego
- http://www.godless.org/

South Shore Skeptics
- Skeptical organization in Cleveland, Ohio, that promotes reason and rationality and opposes superstition and junk science. Newsletter, calendar, skeptic related links, and an area devoted to logical fallacies.
- http://home.earthlink.net/~jimkutz/sss/

Secular Humanists of the South Carolina Midlands (SecHumSCM)
- Resource site for a South Carolina organization affiliated with the Alliance of Secular Humanist Societies.
- http://www.newbanner.com/SecHumSCM/

Freethinker's Association of Central Texas
- Not-for-profit educational organization, providing fellowship and a forum for critical discussion and debate on any topic of importance for humankind.
- http://www.atheistalliance.org/fact/

United States Atheists
- Atheist community center based in Portland, Oregon.
- http://www.unitedstatesatheists.com/

Montana Freethinkers
- A site for Montanans (and others) to learn and share atheist, humanist, and other free thought views.
- http://www.mtfreethinkers.org/

Minnesota Atheists
- Promoting atheism as a positive element in society. Minneapolis based with newsletter, events listing and links.
- http://www.mnatheists.org/

Atheist Community of Austin
- Dedicated to developing a positive atheist culture, opposing discrimination against atheists and defending state-church separation. Includes activities, articles, bookshop, humor, and membership information.
- http://www.atheist-community.org/