Not all case law is published. Generally, appellate court decisions that will be used as future precedent are published (reported) in sources (case reporters) specific to that court. Attorneys use published case law as a means to argue before a court, which interprets the law. For more about the print reporter system see the following document.
WestLaw is one of the largest publishers of legal documents and research. Begin most legal research for business topics or cases or secondary law reviews in the Westlaw (Thomson Reuters) database.
If you want to search for a specific case or law review articles on a topic, start with Westlaw, our largest database of legal documents and research. For videos on searching Westlaw and more information, please see the Law/Legal Studies @ Webster University Libraries research guide.
You may also search for documents in a practice area.
The Legal Information Institute (LII) at Cornell University Law School is a "small not-for-profit group that believes everyone should be able to read and understand the laws that govern them, without cost." They fulfill this mission by "publishing law online, for free, and creating materials that help people understand" the law. Statutes/codes for those studying business law include:
World -- National and International laws