In the Beginning: Which Type of Opening Works Best? from The Other Side of the Story discusses the pros and cons of different kinds of story openings.
Setting: The Stepchild of Writing Craft is a guest post by Blythe Gifford on the Erin Reel website suggesting five reasons that setting is such an important element to our stories.
How Emerging Authors Can Make The Perfect Pitch: Advice from Katharine Sands on the bookbaby site discusses pitch-craft.
Secondary Characters Have a Life of Their Own from the Live Write Thrive site talks about your novel's supporting cast.
The Scene Conflict Worksheet - Developing Tension in Your Novel from Adventures in YA & Children's Publishing is a useful checklist to bring more depth to the conflict in your novel.