Police Writers Club  
   Provides writers of both fiction and nonfiction with knowledge, resources and information through shared networking on police methods and sources.
   http://www.policewriter.com/

Sisters in Crime  
   An organization founded to combat discrimination against women in the mystery field. Internet chapter.
   http://www.sinc-ic.org/

A Mystery Lover's Notebook  
   Links to markets, conventions and other resources for mystery writers.
   http://www.cluelass.com

The Mystery Writers' Forum  
   Mystery writers and aspiring mystery authors who are sharing our trial, tribulations, research problems and triumphs on a supportive threaded bulletin board system.
   http://www.zott.com/mysforum/

Crime Writers of Canada  
   National association for professional practitioners of the crime writing genre. Includes newsletter, information on authors, awards, and links.
   http://www.crimewriterscanada.com/

Cops 'n Writers  
   Consulting service for mystery writers who want to incorporate police procedures and culture into their writings.
   http://www.copsnwriters.com

The Short Order Mystery Netletter  
   An online netletter/ezine for readers and writers of mystery fiction in the short form. Contains articles on the writer's craft, writing markets, scam alerts, history of the mystery, and announcements.
   http://www.thewindjammer.com/smfs/newsletter/

UNB Saint John Ward Chipman Library  
   Internet resources for detective and mystery fiction.
   http://www.unbsj.ca/library/subject/mystery1.htm

Crime Writers of Great Britain  
   A professional body which sets out to represent writers of crime fiction and non-fiction.
   http://www.thecwa.co.uk/

The Mystery Writers Forum  
   Links to resources for research for mystery and crime writers.
   http://www.zott.com/mysforum/links.htm

Mystery Writers of America, Florida Chapter  
   Links to feature interviews and articles, members and their books, chapter activities, the annual Sleuth Fest conference in March, and favorite links.
   http://www.mwa-florida.org/

True Crime Fanatic  
   Articles on true crime and tips on writing true crime.
   http://www.TrueCrimeFanatic.com

SinC  
   The purpose of Sisters in Crime is "to combat discrimination against women in the mystery field, raise awareness of their contribution to the field, and promote the professional advancement of women who write mysteries."
   http://www.sistersincrime.org/

Forensic Science for the Mystery Writer  
   Archive of a column designed to give a coherent explanation regarding different aspects of forensic science and crime scene investigation.
   http://www.suite101.com/welcome.cfm/forensic_science_mystery_writer

Crime Writers  
   A group for writers of crime fiction/ mysteries to share resources, information, law enforcement or criminal procedural and profiling ideas and research data for use in our books and other writing projects.
   http://groups.yahoo.com/group/crimewriters

Joan Hall Hovey  
   Official site of suspense author Joan Hall Hovey with a note to inspire aspiring authors.
   http://www.angelfire.com/ca3/joanhallhovey/note.html

Mystery Writers Corner  
   Club for mystery writers to chat and share ideas.
   http://groups.yahoo.com/group/mysterywriterscorner/

Blood at the Source: Research Tips for Mystery Writers  
   Tips for mystery writers on how to get the most out of libraries and the Web. Includes contemporary crime, criminal justice, and general research sources and strategies.
   http://www.barbarafister.com//BloodattheSource.html

The Mysterious Writ  
   A mystery writers' group site.
   http://www.mysteriouswrit.org/

American Crime Writers League  
   Formed in the late 1980s by a group of writers who wanted a private forum for exchanging ideas.
   http://www.acwl.org/

CrimeWriters Queensland  
   A vibrant community writing group based in Brisbane, Australia.
   http://www.connectqld.org.au/asp/index.asp?pgid=8857

Scene of the Crime Festival  
   Annual gathering of mystery writers and readers celebrates the heritage of Wolfe Island, Ontario, as the birthplace of Grant Allen, Canada's first crime writer.
   http://www.sceneofthecrime.ca/

Mystery Writers of America  
   Mystery writers, mystery books, up and coming authors, chapter news and events. Rocky Mountain Chapter.
   http://www.rockymountainmysterywriters.com/