Rain Before Rainbows: Resources for Writers

Back to Basics by Lorraine Heath: A great article on how to reduce redundant, unnecessary, and weak words.
The Craft of Writing by Macedon: Wonderful descriptions on every writing rule
Don't Tell Me . . . Show Me by Vivian Teresa Beck: A great article that helps writers learn how to make their writing more vivid.
How can I learn to recognize mistakes?: Ignore the links for gay men--I still think this article is a great source of information.
How to write marginally readable fan fiction by Ms. Nitpicker: This page is a little hard to read, but it's still a great source.
Please Get Your Characters Out of My Way! by Kate Gerard: Why you shouldn't and how to limit "filtering" through the POV character
Practical Guidance on Comma Use by the Purdue University Online Writing Lab: Tips on what to look for when deciding if a comma is needed
Sex in the Romance: A Review of Romantic Encounters of the Close Kind by John L. Ferri: This site has an extensive information about how to write intimate scenes--no matter how explicit you wish to be.
What's the Point of Point of View by Crysothemis: Justification for single POV and tips on maintaining it
Writers Tips -- Cheat Sheets: Cheat Sheets are lists of ideas that help put the story in focus, and offer ideas to create or further a story. They are not writing rules, merely suggestions. This collection is huge!

All About Romance: Romance Author-Penned Articles on a wide variety of subjects
Articles for Novelists and Nonfiction Writers: Another extensive collection of links.
Fiction Factor: The online Magazine for Fiction Writers: This links you to the article section. There are dozens of really good articles.
Inspired2Write: Another huge collection of articles by writers for writers.
Patricia Kay Writing articles: I've never read any of her books, but I found these articles very helpful.
The Plural of Apocalypse: Although this is primarily a site on writing Buffy the Vampire Slayer fiction, you'll find essays on how to write action scenes, plotting, characters, and more.
Rich Hamper's Writer's Resources Page: A collection of articles by Rich Hamper. They are worth the time it takes to read.
Writing Tips: A collection of articles.

Elements of Phyle: Clarifies commonly confused words, amusing X-Files examples
The Guide to Grammar and Writing: This site is sponsored by the Capital Community College Foundation and is the definitive guide to grammar with articles on every thing you'll ever need.
Holy Mother Grammatica's Guide to Good Writing: Summary of multiple points for writing readable fan fiction

Charlotte Dillon's Articles on Writing: This site by Charlotte Dillon contains an extensive collection of writing links. Not all the links work, but it's still worth checking out.
Charlotte Dillon's Building Fictional Characters: Another site by Charlotte Dillion.