Our organization believes that because the laws of the land are in the public domain, they should be accessible by the public without restriction and especially without charge. — http://openjurist.org/
OpenJurist is a free resource for case law in the United States. All case law including "~647,000 opinions and other transactions from the United States Supreme Court, beginning with the first session in 1790; and Lower Federal Courts, as published in the Federal Reporter beginning in 1880" are available on OpenJurist.org in the public domain.
OpenJurist has officially waived all copyright restrictions under the CC0 public domain waiver.
Works by the U.S. government are in the public domain, but not necessarily accessible to the public. OpenJurist has worked to rectify this by releasing Supreme Court and Federal Appellate Court Decisions since the 1700s under the CC0 public domain waiver.