Question: Were both Reno v. American Civil Liberties Union and Curtis Publishing Co. v. Butts related to the First Amendment?

Context articles: Curtis Publishing Co. v. Butts
Norman Siegel
ACLU of Massachusetts
New York Civil Liberties Union
ACLU v. Clapper
American Civil Liberties Union v. Ashcroft
Ashcroft v. American Civil Liberties Union
American Civil Liberties Union of New Jersey
Reno v. American Civil Liberties Union
Freedom for the Thought That We Hate

Curtis Publishing Co. v. Butts, 388 U.S. 130 (1967), was a case in which the Supreme Court of the United States established the standard of First Amendment protection against defamation claims brought by private individuals.
Norman Siegel was the director of the New York Civil Liberties Union (NYCLU), New York's leading civil rights organization, under the umbrella of the nationwide American Civil Liberties Union (ACLU).
The American Civil Liberties Union of Massachusetts (ACLUM) (established 1920) is a civil rights organization in the United States, and it is the Massachusetts affiliate of the American Civil Liberties Union.
The New York Civil Liberties Union (NYCLU) is a civil rights organization in the United States.
 Founded in November 1951 as the New York affiliate of the American Civil Liberties Union, it is a not-for-profit, nonpartisan organization with nearly 50,000 members across New York State.
American Civil Liberties Union v. James Clapper, No. 13-3994 (S.D. New York December 28, 2013), was a lawsuit by the civil liberties promoting nonprofit organization the American Civil Liberties Union (ACLU) and its affiliate, the New York Civil Liberties Union, against the United States federal government that challenged the legality of the National Security Agency (NSA)'s bulk phone metadata collection program.
 On December 27, 2013, the court dismissed the case, finding that metadata collection did not violate the Fourth Amendment.
 On January 2, 2014, the ACLU appealed the ruling to the United States Court of Appeals for the Second Circuit.
 On May 7, 2015, the appeals court ruled that Section 215 of the Patriot Act did not authorize the bulk collection of metadata, which judge Gerard E. Lynch called a "staggering" amount of information.
American Civil Liberties Union v. Ashcroft (filed April 9, 2004 in the United States) is a lawsuit filed on behalf of a formerly unknown Internet Service Provider (ISP) owner by the American Civil Liberties Union against the U.S. federal government.
Ashcroft v. American Civil Liberties Union, 535 U.S. 564 (2002) (also called "Ashcroft v. ACLU"), was a 2002 United States Supreme Court case involving the American Civil Liberties Union and the United States government regarding the Child Online Protection Act (COPA).
 The unconstitutionality of the law was ultimately upheld by the United States Court of Appeals for the Third Circuit, while earlier injunctions against the law by that same court were at first dismissed by but later upheld by the Supreme Court. "
Ashcroft v. Free Speech Coalition" (2002) dealt with a similar law, the Child Pornography Prevention Act of 1996 (CPPA).
The American Civil Liberties Union of New Jersey (ACLU-NJ) is a nonpartisan, not-for-profit civil rights organization in Newark, New Jersey, and an affiliate of the national American Civil Liberties Union.
 According to the ACLU-NJ's stated mission, the ACLU-NJ operates through litigation on behalf of individuals, lobbying in state and local legislatures, and community education.
Reno v. American Civil Liberties Union, 521 U.S. 844 (1997) , is a United States Supreme Court case in which the Court unanimously ruled that anti-indecency provisions of the 1996 Communications Decency Act (CDA) violated First Amendment's guarantee of freedom of speech.
 Two Justices concurred in part and dissented in part to the decision.
 This was the first major Supreme Court ruling on the regulation of materials distributed via the Internet.
Freedom for the Thought That We Hate: A Biography of the First Amendment is a 2007 non-fiction book by journalist Anthony Lewis about freedom of speech, freedom of the press, freedom of thought, and the First Amendment to the United States Constitution.
 The book starts by quoting the First Amendment, which prohibits the U.S. Congress from creating legislation which limits free speech or freedom of the press.
 Lewis traces the evolution of civil liberties in the U.S. through key historical events.
 He provides an overview of important free speech case law, including U.S. Supreme Court opinions in "Schenck v. United States" (1919), "Whitney v. California" (1927), "United States v. Schwimmer" (1929), "New York Times Co. v. Sullivan" (1964), and "New York Times Co. v. United States" (1971).