A statute is a written law passed by a legislature or congress. At the federal level, these are the public and private laws passed by the U.S. Congress. Provided in chronological order, they are the United States Statutes at Large. Provided in a subject arrangement, these same laws are known as the the United States Code. You can find the Statutes and Code at the sites/databases below.
Administrative law is rules and regulations created by government agencies in support of their functions.
Case law is the collection of published legal decisions of the courts, which interpret the statutes, regulations, and constitution. They establish precedents binding on all courts. These precedents, as they are reaffirmed and enforced by other court decisions, expand the common law.
While there are many places to find court cases on the web, we recommend that you use LexisNexis Academic, which provides case decisions from the U.S. Supreme Court, courts of appeals, former circuit courts, district courts, bankruptcy courts, former Court of Claims, Court of Federal Claims, Tax Court, related federal and territorial courts and military courts.