American Civil Liberties Union (ACLU) of Pennsylvania: Leading organization in defense of civil liberties, regardless of political persuasion
Committee of Seventy: Political watchdog group and nonpartisan research and election information source for the Philadelphia metropolitan area
Lehigh Valley Animal Rights Coalition: Covers Pennsylvania animal rights issues, provides meeting dates, and offers a newsletter.
PennPIRG: The Pennsylvania Public Interest Research Group: Group affiliated with Ralph Nader which researches issues and lobbies for liberal solutions
Pennsylvania Association for Government Relations: Organization for lobbyists in the Commonwealth of Pennsylvania. Guidelines, membership, newsletter and calendar.
Pennsylvania Coalition Against Rape: Working to eliminate all forms of sexual violence and to advocate for the rights and needs of victims of sexual assault.
Pennsylvania Family Institute: Conservative Christian organization strengthening families by restoring to public life traditional and foundational principles and values
Pennsylvania Pro-Life Federation: Statewide pro-life coalition opposed to abortion, infanticide, and euthanasia