Pennsylvania Citizens for Better Libraries
- Organization whose mission is to stimulate public and government awareness of the value of PA libraries as essential community services.
- http://www.pcblpa.org/

State Library of Pennsylvania
- Information about the library facility and collections in Harrisburg, services offered statewide, history of the institution, access to online collections, and links.
- http://www.statelibrary.state.pa.us/

POWER Library Information Center
- Access to online electronic resources for users of member school and public libraries in Pennsylvania.
- http://www.powerlibrary.net/