Political Database of the AmericasFrom the Center for Latin American Studies at Georgetown University, this resource contains information about: constitutions, executive, legislative, and judicial branches of government, electoral systems and data, political parties, decentralization and local governance, democracy, indigenous peoples, civil society, and more.
HLAS (Handbook of Latin American Studies)A bibliography of Latin American scholarship collected by scholars and maintained by the Hispanic Division of the Library of Congress.
U.S. State Department: Historical DocumentsArchive of Foreign Relations documents providing a record of "major U.S. foreign policy decisions and significant diplomatic activity."