FindLaw: Supreme Court Opinions [IA][Direct] -
Searchable database of all decisions since 1937. Browsable by year and US Reports volume number, and searchable by citation, case title and full text.
Supreme Court Decisions from 1930 - 1975 [IA][Direct] -
Full text of 7,407 U.S. Supreme Court decisions from 1937 to 1975. Decisions are available as ASCII text files. Database can be searched by title or by full text search engine.
USSC Plus [IA][Direct] -
Browse or search the USSC+ archive of decisions dating back to 1967.