Government

World Statesmen - Congo (Brazzaville) - Review of the country's history, politics, leaders and international organizations and treaties. Includes map, constitution, national anthem and pictures of historical flags.
http://www.worldstatesmen.org/Congo-Brazzaville.html

US Law Library of Congress - Congo - Annotated compendium of online sources providing access to primary documents, legal commentary and general government information about specific jurisdictions and topics.
http://www.loc.gov/law/help/guide/nations/congo.html

World Legal Information Institute - Congo - Catalog and search facilities for over 500 databases from 55 countries including case-law, legislation, treaties, law reform reports, law journals, and other materials.
http://www.worldlii.org/catalog/2690.html

CIA - Chiefs of State and Cabinet Members of Foreign Governments: Congo, Republic of the - List of government officials and their titles, updated weekly. Also includes the head of the central bank, ambassadors to the United States and Permanent Representatives to the UN, New York.
https://www.cia.gov/library/publications/world-leaders-1/world-leaders-c/congo-republic-of-the.html

African Elections Database - Congo-Brazzaville (Republic of Congo) - Information on national elections includes country's political profile and full historical results.
http://africanelections.tripod.com/cg.html