US Library of Congress Country Study

Covers history, society, geography, and economy.
http://lcweb2.loc.gov/frd/cs/patoc.html

CIA World Factbook

Brief history, overview of government and political parties, and statistical information on education, health, and the economy.
http://www.cia.gov/cia/publications/factbook/geos/pm.html

Panama Chiriqui

Photos and brief description of this region of the country. [English/Spanish]
http://www.panama-chiriqui.com

US Department of State

Geography, people, government, economy, US-Panama relations, and business and travel information.
http://www.state.gov/p/wha/ci/c2889.htm

World Bank Group

Includes country overview, details of active projects and document search facility.
http://lnweb18.worldbank.org/External/lac/lac.nsf/Countries/Panama/

BBC News Country Profile

Key facts, figures and dates.
http://news.bbc.co.uk/1/hi/world/americas/country_profiles/1229332.stm