Proportional Representation Library - A source of information on proportional representation elections -- including beginning readings, in-depth articles by scholars and activists, an extensive bibliography, and a guide to relatedWeb sites.
Proportional Representation Society of Australia - A society which promotes the Hare Clark Quota Preferential method of Proportional Representation (Quota Preferential is also known as Single Transferable Vote or STV).
Under the Cloak of Patriotism - History of Proportional Representation in New York City Council Elections in the 1930s-1940s. Describes how World War II and the early Cold War influenced local politics and the fate of "PR."
Washington State Citizens for Proportional Representation - Represents Washington State voters dedicated to fair representation in local, state, and federal elections, by increasing voter awareness of alternative methods of elections.
Fair Vote Canada - The primary purpose of Fair Vote Canada is to gain broad support for a national process to enable Canadian voters to choose which voting system shall be used to elect their representatives.