Federally chartered, non-profit organization representing the professional and personal interests of active duty and retired enlisted members of the U.S. Air Force, Air National Guard and Air Force Reserve. Provides overview of membership benefits, legislative updates, guidelines, and project information.

Columbia Encyclopedia article on the history and purpose of the National Institute of Arts and Letters and the American Academy of Arts and Letters, amalgamated in 1976.

A self-governed, chartered individual membership organization of professionals and scientists. Site features resources for educators and students, amateur chemists, and policy makers as well as chemical and chemistry-related news, factoids, events, and reference items.

A private non-profit federation of national scholarly organizations advancing the humanities and social sciences. ACLS fellowship and grant information; member organizations; publications; and news available on the site.

National organization for military and civilian Americans captured by the enemy during wartime. Benefits and award information, biographies of former POWS, and information and resources for ex-POWs and their next of kin available.

Umbrella organization for professional historians in the United States. Site links to publications and journals, affiliated organizations, and annual meeting information, as well as providing job ads, teaching and education guides, and other history resources.

National network of symphony, chamber, youth, and collegiate orchestras of all sizes which advocates for orchestras and the music they perform to the public. Site includes resources for orchestras, conference and event calendar, and news.

Veterans' organization open to all branches, founded in 1886. Site includes history, ideals and purpose, and information on founding or joining local garrisons.

Youth mentoring organization founded in 1904. History, success stories and news, volunteer information, and sponsorship/shopping opportunities provided.

Service and advocacy organization for blind and visually impaired U.S. veterans. Newsletter, description of services, and related links provided.

An organization for all mothers who have children serving or who have served in the U.S. armed forces. History, member directory, newsletter, discussion forum, event information, and related links provided.

Promotes firearms safety training and rifle practice for all qualified U.S. citizens, with special emphasis on youth, through a network of state associations and local clubs. Site includes resources for marksmanship, firearms and range safety, shooting competitions, and parts and ammunition sales.

Society created by the U.S. Congress in remembrance of recipients of the Medal of Honor, the highest military award.

Sororial lineage society which seeks to honor their ancestors through public service. Site offers membership requirements, state listings, society departments, projects, history, and links.

Professional organization for private and government lawyers and judges involved in federal practice. Calendar, membership and chapter information, description of sections and structure, publications, and related links provided.

News and events at the Washington, DC historic site.

Composed of American mothers who have lost a child serving in the armed forces in foreign conflicts. History, reports from recent events, and headquarters tour online.

An organization for spouses of those killed in the US military on active duty or from service connected disabilities. Membership application, widow support links, and roster of directors and local chapters available.

Events, history, information about membership and auxiliaries, and links to state departments.

Organization of recipients of the Medal of Honor, Distinguished Service Cross, Navy Cross, and the Air Force Cross. History, current officers, and convention and museum information provided.

Professional support organization for military chaplaincy in the U.S. Information about scholarship programs, membership, national institutes, and Distinguished Service Awardees provided.

A national patriotic organization of American military officers of all services and their descendants. Calendar, high school and ROTC guides, MOWW history, and organizational background.

Bonner Springs, Kansas museum chartered by Congress to honor the American farmer. Site describes events and education programs, provides museum facility overview and visitor information, and relates history and current interests.

Located at the United States Air Force Museum in Dayton, Ohio. Includes history, list of enshrinees, educational materials, and links to other web sites.

Association of 55 state and territorial societies which celebrate the history, traditions, schools, customs, and the economy of the US states and territories. Site features history, calendar and Cherry Blossom Festival information, photo gallery, and directory.

Organization devoted to improving civic education and effective participation in citizenship activities on the part of US citizens. Programs and projects, history, and officer profiles.

Seeks to formulate and disseminate information, guidance and recommendations on radiation protection and measurements which represent the consensus of leading scientific thinking. Member organizations, documents and publications, and background and description of current programs offered.

Sponsors programs to honor firefighters fallen in the line of duty, and to assist their families and coworkers. Site includes information about the Memorial Weekend and other events, benefits and programs, and history.

Non-profit organization dedicated to music education and the promotion of creative and performing arts in the US. Competition and event information, award winners, links to state organizations, and publication information provided.

Raises money for non-profit and public archives to preserve and make available endangered films that are not protected by commercial interests. Preservation basics, news, current grants and projects, and links to archives.

Formed to improve teaching methods in medical education in order to improve health care in the United States. History, current board of directors, and programs and proceedings available.

Leadville, Colorado monument to pioneers in the discovery, development and processing of the natural resources of the US. Directions, virtual museum, hall of fame, news, and facility information provided.

Dedicated to strengthening the importance of music in US life and culture; US representative to the International Music Council/UNESCO. History, legislative updates, and membership information available.

Membership organization which advocates for public safety and health. Site features resources and statistics on safety, health and environmental topics, training, and products; also provides chapter listing, event information, and news.

Kalaheo, Hawaii facility dedicated to the conservation of tropical plant diversity, particularly rare and endangered species. Site describes conservation and research programs, garden locations, and educational activities.

National federation of spouses of personnel enlisted or past enlisted in the U.S. Navy, Marine Corps, and Coast Guard. Includes chapter locations, board member roster, and information about the national project and scholarship.

Advocates on behalf of enlisted men and women in the five branches of the US armed forces, including National Guard and Reserve. Member benefits, chapters, legislative news and resolutions, and publications available.

Professional association representing the commissioned and warrant officers of the uniformed services. Site includes current news and event information, legislative alerts, membership information, programs by military section, and defense education resources.

Advocacy group for active duty and retired enlisted personnel. Legislative and health care information, outreach programs, and current news offered online.

Short unofficial history regarding the establishment and chartering of the AHP.

Membership organization in the United States dedicated to advancing the study and use of international law. Site includes information about activities and publications and links to international law resources.

Portal page for the National Academy of Sciences, National Academy of Engineering, National Research Council, and Institute of Medicine.

Group which celebrates the life and career of Teddy Roosevelt. Provides biography, timeline, cartoons, and photographs, as well as research resources.

A nonprofit and nonpartisan educational organization created in 1962 to promote the history of the Capitol building and of the U.S. Congress. Includes calendar, membership application, educational resources, publications and symposia links, and online exhibit.

Provides morale, welfare, and recreational services to uniformed military personnel. Site describes entertainments, programs and services, locations, and special events.

Founded in 1970 to promote improved public understanding of the U.S. Congress and of representative democracy. Site includes articles from former members, event and program information, memorials, publications, and related links.

National Service Organization of U.S. citizens who have served, or are now serving, in the U.S. Navy, Coast Guard, Marines, or Seabees. Application, ship roster, ladies' auxiliary, and related links offered.

Calendar, athlete biographies, photographs and news from individual sports, links to member federations, and downloads available.

Dedicated to submariners, submarines, and sub veterans. Reunion information, news, links to local clubs, history, and membership resources included.

Open to those who have served honorably with the Women's Army Auxiliary Corps, the Women's Army Corps, or those who have served or are serving honorably in the US Army, the Army Reserve, or Army National Guard. Officer profiles, history, event and program information, and related links.