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Where do you find other writers?  The internet is a good place to start.  Do a search for writing groups in your area.  Depending on your needs you may or may not want to meet on a regular basis.  For me it's important to have that contact at least once a month with other writers.  Face it, only another writer will truly understand a writer.  Family and friends may nod and listen intently when you describe your story but they won't be able to help you with plot holes, weak characters, pacing or anything else a writer can help you with. 

Some writing groups out there are listed below.  Some have national and local chapters with the local groups meeting monthly.  I will also be listing some yahoogroups you can join. There are a number of loops out there to help writers stay in touch.  I also have a forum where you can post messages about all things related to writing.
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General

Authors Guild
Canadian Authors Association
National Writers Union
Novelists Inc.

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Genre

Crime Writers of Canada - National organization for Canadian crime writers
Crime Writers Association of Great Britain - Professional group of crime authors
Horror Writers Association
Mystery Writers of America  - Has eleven regional chapters
Romance Writers of America  - Has local chapters all over the United States, Canada and overseas
Science Fiction and Fantasy Writers of America
Sisters in Crime  - Has a number of chapters across the U.S. as well as two in Ontario, one in Germany and one in Australia
Western Writers of America

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Non-fiction

American Society of Journalists and Authors
International Federation of Journalists
Medical Writer - The European Medical Writers Association
Society for Technical Communication
The American Medical Writers Association


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