"Justia provides a free collection of all U.S. Supreme Court decisions from 1791 to the present. We also offer opinion summaries, briefs, oral argument audio, and resources that provide a panoramic view of each case in its context."

"he LII is known internationally as a leading “law-not-com” provider of public legal information. We offer all opinions of the United States Supreme Court handed down since 1992, together with over 600 earlier decisions selected for their historic importance, over a decade of opinions of the New York Court of Appeals, and the full United States Code and Code of Federal Regulations as well as all of the Federal Rules. We also publish important secondary sources: a 6,000+-entry legal dictionary and encyclopedia that contains, among many other things, a series of “topical” pages that serve as concise explanatory guides and Internet resource listings for roughly 100 areas of law."

"Oyez (pronounced OH-yay)—a free law project from Cornell’s Legal Information Institute (LII), Justia, and Chicago-Kent College of Law—is a multimedia archive devoted to making the Supreme Court of the United States accessible to everyone. It is the most complete and authoritative source for all of the Court’s audio since the installation of a recording system in October 1955."

Official site of the U.S. Supreme Court. Features opinions, argument transcripts and audio recordings, reports, filings, etc.