Special libraries that are used primarily by judges, attorneys and their law clerks; government officials; legislators, law students and teaching staff; historians and other scholars; and sometimes members of the general public to research the law. They may be operated by government, public or private educational institutions, nonprofit societies or private law firms. Law libraries may also have law librarians who help researchers navigate the library's collections.

Programs that publish and distribute directories of agencies that provide human services for residents of the community and/or resource lists. Included are programs that produce directories/lists that focus on a specific geographical area, service category or target group as well as those that produce a comprehensive directory of all community resources.

Individuals who are generally between the ages of 18 and 25 depending on the ages that specific programs use for qualification.