FindLaw Cases and Codes
Findlaw is a US website owned by Thomson Reuters. Its Cases and Codes section provides free access to federal case law, the US Constitution and the US Code (a compilation of federal laws in force). State constitutions, state case law and some state codes are also available, together with materials such as bills and city ordinances. The case law files typically go back to the 1990s, but the US Supreme Court opinions go back to 1893.