• CIA World Factbook - El Salvador, provides the flag, a political map, and detailed information on geography, people, government, the economy, communication, transportation, military, and transnational issues.
• Library of Congress Country Studies - El Salvador, provides a searchable and very detailed book-length portrait including geography, society, economy, transportation, telecommunications, industry, infrastructure, politics, government, national security, history, environment, religion, education, health care, and much more.

Internet Site Search Engines and Indexes

• Latin America Network Information Center - El Salvador, links to internet sites arranged by category, including, Academic Research Resources, Arts & Humanities, Discussion Groups, etc.