Other
The Oas and the Inter American System
This site on the The OAS and the Inter-American System provides history, key dates, original and current member states, past and present secretaries general, and more.
Yale University
Charter of the Organization of American States, 1948
The Avalon Project of the Yale Law School here provides the text of all 112 articles of the OAS charter, adopted at the Bogota Conference of American States, March 30-May 2, 1948.