CIA - Chiefs of State and Cabinet Members of Foreign Governments: Portugal
- 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-p/portugal.html

Wikipedia - Jorge Sampaio
- Hyperlinked encyclopedia article about the President of Portugal.
- http://en.wikipedia.org/wiki/Jorge_Sampaio

ICL - Portugal Index
- Complete copies and links to the country's Constitution, along with related background, history and events, provided by International Constitutional Law.
- http://www.oefre.unibe.ch/law/icl/po__indx.html

US Law Library of Congress - Portugal
- 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/guide/portugal.html

World Legal Information Institute - Portugal
- 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/2069.html

The Portuguese Parliament
- Parliament of Portugal. General introduction, guided tour to the São Bento Palace, Constitution of the Portuguese Republic.
- http://www.parlamento.pt/ingles/