http://www.dre.pt/
The official government’s journal for the publication of new law. Partially free, partially on subscription only. Should contain the newer acts back to 30 years ago, including the Portuguese constitution.

http://www.stj.pt/nsrepo/geral/cptlp/Portugal/CodigoCivil.pdf
An on-line version of Portugal’s Codigo Civil.

http://www.mj.gov.pt/sections/home
The official Internet portal of Portugal’s Ministry Of Justice.

http://www.tribunalconstitucional.pt/tc/index.html
The official page of the Constitutional Court of Portugal. It contains the Constitution in English, French and Portuguese. It also provides the jurisdiction of the court from 1989 on – for free, in Portuguese. Also, it provides the law of the Constitutional Court in English Portuguese and French, as well as several other administrative laws only in Portuguese.

http://www.stj.pt/
The official website of the Supremo tribunal de justicia. It provides jurisdiction of the court from 1996 on, so far in Portuguese only.