e-legal lesson

An annotation is a note added for the sake of explanation or criticism. In law, annotations appear in the Lawyers’ Edition of the United States Reports and in American Law Reports (ALR). Annotations usually follow the text of a reported case.
A note or lawnote is a scholarly legal essay shorter than an article and restricted in scope, usually written by a student for publication in a law review. In this sense note and lawnote are synonymous, the latter being slightly more specific. A casenote is so restricted in scope that it deals only with a single case; lawnotes, in contrast, tend to treat many cases in a general area of the law.