American Crime Writers League
The ACWL was formed in the late 1980s by a group of writers who wanted a private forum for exchanging ideas, complaining about almost everything, and trying to understand this decidedly wacky business.
Mystery Writers of America
Mystery Writers of America, Inc., is the premier organization for mystery writers and other professionals in the mystery field.
Police Writers Club
The Police Writers Club provides police writers with the knowledge, resources and networking capabilities to share their expertise with others through the written word.
Sisters in Crime
Sisters in Crime is a a mystery writers' organization for all women and men dedicated to the mystery genre. The organization is now over twelve years old, has a membership of well over 3,000 worldwide, and continues to grow.