This is by no means a complete list, but it is a list of sites that I have found to be useful. I will keep adding to it, and feel free to make suggestions as well. Since I write in the mystery/thriller genres, many of these links have to do with that genre.
Autopsies
How Stuff Works
Kal County
Medicine Net
eHow Autopsy
Pathguy
Relentless Defense
Wallace Fugate
Authors
Dame Agatha Christie
Mystery Net
Backstory
How to Include Backstory
Writing the Fiction Backstory
Novel Writing: The Backstory
Bio’s (Tips on how to write one)
Writer's Digest
Fiction Addiction
Associated Content
eZine Articles - 1
eZine Articles - 2
Book Editors
Book Editing Associates
Preditors and Editors
Cause of Death
Writing World - Suicide
Modern Medicine
Forensic Medicine
Relentless Defense - Gunshot Wounds
Classic Poisons
Character Names
Think Baby Names
Baby Names
Surnames
Consulting Services
Cops and Writers
Wildfire Marketing
Forensics
truTV
Australian Museum - Forensics
Forensics Online
Writers Forensics
Crime and Clues
Homicide
NMSOH
Indie Publishing
Coming Soon...
Literary Agents and How to Get One
AAR
Agent Query
CBA Blog
Hook
Hook your Reader from the First Sentence
Hook your Reader Right from the Start
Hook Your Reader
Marketing
Wylie Merrick
eHow - Guerilla Marketing
Writing World
Marketing Tips for Authors
Plot
Plot Whisperer
Police Interrogation
How Stuff Works - Interrogation
Relentless Defense - Confessions
Police Questions/Forum
Real Police
Private Investigators
Writing World
Investigators Anywhere
Protagonist
A Winning Protagonist
How to Develop a Protagonist
The Protagonist
How to Create a Well-Rounded Protagonist
Which Protagonist is Yours
Publishing
Writers Digest - Publishing Contracts
JA Konrath
Editorial Ass
Evil Editor
Red Herrings
Planting Clues and Red Herrings
How to use Clues and Red Herrings
Red Herrings
Reference
Online Encyclopedia
Rules of Evidence
Cornell University Law School
Writers Digest - Myths of Publishing
Search Warrants
Nolo - Legal Encyclopedia
Serial Killers
William Hearn
Expert Law - Serial Killers
Villains
Villains are People Too
Writing the Effective Villain
Creating Villains People Love to Hate
Word Power
Dictionary
Thesaurus
Cliches(learn them and avoid them)
Glossary of Police Terms
Glossarist - Police Dictionary & Glossary
Police Slang
Word of the Day
Expand Your Vocabulary
Western Slang
Grammar Blog
Quick and Dirty - Grammar Tips
Writer Advice
Writer Beware
No Rules Blog
Michael Hyatt - Advice for First Time Writers
Reading List
Out of all the books I have read these are the ones I consider to be a MUST for every writers collection. They are full of a wealth of information and are excellent books to reference as you write. I will keep adding to the collection whenever I come across a book that I deem worthy enough to make it on the list.
Character Building
Breathing Life Into Your Characters - Rachel Ballon
Bullies, Bastards & Bitches - Jessica Page Morrell
Characters, Emotion & Viewpoint - Nancy Kress
Dialogue - Gloria Kempton
Editing
Revision & Self-Editing - James Scott Bell
Forensics
Book of Poisons - Serita Stevens
Dissecting Death - Frederick Zugibe, M.D.
Forensics - D.P. Lyle, M.D.
Grammar
A Grammar Book for You and Me - C. Edward Good
How to Swat the Killer Be's Out of Your Writing - Nancy Owens Barnes
The Elements of Style - William Strunk Jr. and E.B. White
Indie Books/Indie Publishing Must Reads
The Indie Journey
The Newbies Guide to Publishing
Be the Monkey
The Indie Author's Guide to the Universe
How I sold I Million eBooks in Five Months
Let's Get Digital
Memoirs & Bio's
On Writing - Stephen King
The Bedside, Bathtub & Armchair Companion to Agatha Christie - Dick Riley
Mystery Writing
Don't Murder Your Mystery - Chris Roerden
Telling Lies for Fun and Profit - Lawrence Block
Writing Mysteries - Sue Grafton
Writing The Mystery - G. Miki Hayden
Plot
Plot & Structure - James Scott Bell
Private Investigating
The Complete Idiot's Guide to Private Investigating - Steven Kerry Brown
Serial Killers
The Serial Killer Files - Harold Schechter
Serial Killers and Mass Murderers - Nigel Cawthorne
Serial Killers, The Method and Madness of Monsters - Peter Vronsky
Setting
Description & Setting - Ron Rozelle
Writing
Writing the Breakout Novel - Donald Maass
Stein on Writing - Sol Stein
Self-Editing for Fiction Writers - Renni Browne/Dave King