This article is from the misc.writing Writing FAQ, by Wendy Chatley Green email@example.com with numerous contributions by others.
10.5.1 American PEN:
PEN American Center PEN Center USA West
568 Broadway 672 S. Lafayette Park Pl
New York, NY 10012-3224 Los Angeles, CA 90057
phone: (212) 334-1660 Phone: (213) 365-8500
Fax: (212) 334-2181 Fax: (213) 365-9616
Professional writers' organization concerned with freedom of
expression issues. Membership requires one published book or
equivalent in shorter works.
10.5.2 National Writer's Union
13 Astor Place
New York, NY 10003 USA
Phone: (212) 254-0279
This group provides to its members contract consultation
services,ealth insurance plans, and grievance resolution services,
among other benefits. The NWU is affiliated with the United Auto
Workers Union (and thus the AFL-CIO).
According to a previous FAQ maintainer, they appear to be a cross
between a real labour union and a writer's advocacy group.