Service Tree

The Service Tree lists all services in "branched" groups, starting with the very general and moving to the very specific. Click on the name of any group name to see the sub-groups available within it. Click on a service code to see its details and the providers who offer that service.

Academic Libraries

Libraries that are units of or affiliated with public or private postsecondary educational institutions such as polytechnics, colleges and universities, which are organized and administered to meet the teaching, research and professional information needs of students, faculty and affiliated staff of the institution.

National Libraries

Libraries that are units of or affiliated with the federal government and which serve as copyright depositories for materials published in the country, compile and maintain a national bibliography, collect international materials for scholarly use, produce and distribute bibliographic tools such as subject headings listings, develop and maintain standards for bibliographic practices, coordinate a network of libraries nationwide and/or provide reference and other library services for federal employees.

Public Libraries

Libraries supported by public and/or private funds which provide general library services without charge to all residents of a given community, district or region.

School Library Media Centers

Libraries that are located in public or private elementary or secondary schools and maintain print materials as well as a full range of media and associated equipment for use by students and teaching staff.

Special Libraries

Public or private libraries that are devoted to acquiring, classifying and making available to the community for research or general appreciation, books, manuscripts, letters and other documents or artistic materials that are rare, of special interest, of historical significance or of scholarly value. Also included are libraries whose collections specialize in materials that are related to a particular focus or target group, e.g., political thought, minority groups, gay or lesbian groups, religious groups, women.

State Libraries

Libraries that are units of or affiliated with state government and which provide reference and other library services for state officials and employees and, in some cases, the broader community.