Well, that all depends on what you mean by "business law" as the following indicates:
http://en.wikipedia.org/wiki/List_of...ess_law_topics
However, if I were you I would visit one of the legal books online such as:
www.barristerbooks.com
west.thomson.com
They usually have outlines, and commercial case brief outlines that are keyed to your specific book, as well as the examples and explanations series which is a tremendous help.