Cultural Heritage and Sciences Group
- Dedicated to the scientific investigation and conservation of the Portuguese cultural heritage, through the application of nuclear methods, geochemistry, chemistry and mineralogy.
- http://www.itn.pt/sec/qui/pcc/uk_pcc_index.htm

Conimbriga
- The Museu Monográfico de Conimbriga manages the ruins of the Roman city. It gives an outline history, plan and aerial photographs of the site.
- http://www.conimbriga.pt/

Late Bronze Age Settlements in the Beira Interior Region
- A substantial, illustrated summary of a book by Raquel Vilaça (1997), with brief bibliography.
- http://www.uc.pt/aia/beira.html

Côa Valley Archaeological Park
- Encompasses an important array of rock-shelters with prehistoric paintings. Illustrated description of the site, its rock art and the Paleolithic period, with visitor information.
- http://www.ipa.min-cultura.pt/coa/