Articles offering advice and tips about writing:

10 Reasons to Write and Publish Every Day

Ten Mistakes Writers Don't See (But Can Easily Fix When They Do)

Tip Sheets from Fiction Writer's Connection

The Thomas Nelson Guide to Writing a Winning Book Proposal (pdf)

Expressing Numbers

Writing Tips

A Series of Writing Advice Articles by Caro Clarke

Article Writing Tips

Articles for Writers & Publishers ivanhoffman.com

Creative Writing Tips - Dakota State University

English Usage in the Edited Guide -

The Everyday People's Guide on How to Write a Novel by Peder Hill

Extra for Writers

Five Areas of Writing

Genre Jumping

Genres

Guidelines for Writing a Theme

How do you write a book proposal?

How to Research Historical Fiction

How to Write an Article in 20 Minutes

How to Write a Book Review by Bill Asenjo

Pimp My Novel

Three Step Creative Writing Process

Tips for Fiction Writers  Diggs Editorial Services

Top Ten Topics for Writers  - "...addresses the most popular and pressing issues"  Very useful info!

The University of Victoria Writer's Guide

Writing Craft & Technique

Writing- a series of articles from Kristen's Guide

Creative Research Ideas

Writer Beware's Thumbs Down Agency List

How to Pitch Your tip sheets, straight from the editors (via mediabistro)

Profitable Pen articles

Vanity Publishing - advice & tips

Writer Beware - warnings about literary fraud, other schemes, scams