In preparation for writing and publishing my own fanfiction, I I decided to do a little research; a little research, and before long I'd amassed a wealth of links, blogs, and other writings on the topic, both from within and without Fimfiction, and I thought that I could save some other newbies the trouble I had to go through by simply posting them all here.

Honorable mention goes to My Little Republic: Plato is Magic, which isn't actually related to Fanfiction, but is quite interesting in its own right, and attracted enough attention that Lauren Faust herself read and commented on it.

FANFICTION WRITING GUIDES
Ezn's Writing Guide
Cereal Velocity's Writing Guide
Mbulsht's Introductory Guide to Fanfiction Writing
Echer's Hints for Writing Better FanFiction

GRAMMER AND WORD GUIDES
Comprehensive Grammar Guide
Parts of Speech
Tense and Verbals
Guide to The Royal Canterlot Voice
Vocatives
Common MLP:FiM Terms
English Guidelines
EQD Editor's Omnibus

ON STYLE
The Elements of Style
Lavender Unicorn Syndrome
Epithets: Fandom's Designated Hitters
The Big List of Fanfic Pet Peeves
Pacing Your Story
How To Be Funny And Not Just Stupid
The Tools of The Writer
The Emotion Thesaurus
Rhythm and Meter

ON CRITICISM
Regarding Criticism by Kkat
How to Give and Use Criticism by Vren55

ADVICE FROM AUTHORS
Wanderer D's How-To Guides
How to Get Your Story Read 101 By Aegis Shield
How to get people to read your stories by Blueshift
Advice for Aspiring Authors by RatedPonyStar
Guesswork's Writing Tips: One & Two
22 Tips from Pixar on Storytelling (Txt only version here)
Advice to Writers; From Writers

VIDEOS
Andrew Stanton: Clues to a Great Story
Extra Credits: Pacing
Common Grammar Mistakes
Writing Mechanics
I just Finished a Story, Now What?
How to deal with a lack of appreciation for your content
Knowing When It's Time to Post

COMICS
The Oatmeal Grammar Comics

SITES THAT WILL GIVE YOU FEEDBACK
Pony Draft Editing Blog
Ponychan

Grammar Checkers
The Auto-Proofreader App

On Learning To Type
The Online Typing Tutor

WIKI-HOW FANFICTION GUIDES
How to Write
How to Write a FanFiction
How to Write a FanFiction Summary
How to Become Popular
How to Get Feedback
How to Create Believable OCs
How to Breath New Life Into a Cliche

ON FANFICTION IN GENERAL
Wanderer D's Fanfiction rants
On Being a Good Citizen on FimFiction
Bookplayer’s Guide to Shipping Etiquette
How to Comment on a Story without being an A*hole
Sequelitis
When Canon Kills Fanon
OCs, and When To Use Them

GROUPS FOR WRITERS ON FIMFICTION
The Writer's Group
The Proofreader's Group
The School for New Writers
Author Support
Struggling Authors
Authors Helping Authors
The Equestrian Critics Society
WRITE
Overly Extensive Editors
Looking for Editors
Proofreading, Pre-Reading and Editing

PRE-READING, PROOFREADING, AND EDITING
General Guide
Advice for Authors Looking for Proofreaders

RECOMMENDED READING ( PONY)
EQD's Top Rated Stories
The Pony Fiction Vault
The Royal Canterlot Library
TECS Hall of Fame

RECOMMENDED READING ( FICTION)
Hugo Award Winners
Nebula Award Winners
Pulitzer Prize Winners
National Book Award Winners
Man Booker Prize Winners
Time Magazine
BBC's Top 100 Novels
Modern Library's Top 100 Novels

RECOMMENDED READING ( NONFICTION)
Stephen King's On Writing
The Elements of Style
Eats, Shoots & Leaves: The Zero Tolerance Approach to Punctuation
On Writing Well

OTHER USEFUL LINK LIBRARIES
The Writer's Group: Legend of Important Threads and Groups
School for New Writers: School Directory
Seattle's Angels Archive and Resource Thread