Butler County Law Library - Law library serving Butler County, Pennsylvania; site contains the library's hours and location, along with some basic Pennsylvania and Federal legal research links. Jenkins Law Library - Jenkins Law Library, Philadelphia, has been providing information and legal research to the Pennsylvania legal community for almost 200 years. Their mission is to continue to make legal information easy to find and affordable. Barco Law Library - University of Pittsburgh School of Law Mercer County Law Library - Law library serving Mercer County, Pennsylvania; library hours, location, contact information, and basic research links. Senate Library of Pennsylvania - Maintains a collection of Pennsylvania legislative documents and Pennsylvania law books, open to the public; site provides guide to holdings as well as operating hours and location. Biddle Law Library - University of Pennsylvania Law School - includes The National Conference of Commissioners on Uniform State Laws Drafts of Uniform and Model Acts Official Site, American Law Institute Archives, and an organized structure of research links. Pulling Law Library - Law library of the Villanova University School of Law. Allegheny County Law Library - Incorporated within the Duquesne University Center for Legal Information.