On this page you can locate several notable 1st Amendment Cases.
From the American Library Association: This page contains summaries of frequently cited First Amendment cases. Arranged by topic, they cover case law issued by a variety of courts: the Supreme Court of the United States, the Court of Appeals of different Federal circuits, the District Court of several Federal districts, as well as the highest court of several states and particular appellate courts of action.
U.S. = United States Reports
S.Ct. = Supreme Court Reporter
L.Ed. = United States Supreme Court Reports Lawyers' Edition
L.Ed.2d. = United States Supreme Court Reports Lawyers' Edition, Second Series
F.2d = Federal Reporter Second Series
F.3d = Federal Reporter Third Series
F.Supp. = Federal Supplement
F.Supp.2d = Federal Supplement Second Series
N.W. = North Western Reporter
N.W. = North Western Reporter, Second Series
N.Y.S. = New York Supplement
N.Y.S. = New York Supplement, Second Series
P. = Pacific Reporter