I was recently tipped off to a wonderful writer's site by award-winning writer Deborah Halverson. It's http://dear-editor.com/ . You can write in any question you have about any aspect of being a writer: submissions, queries, reading at book signings, you name it. Also questions about WIPs: characterization, plot, opening chapters, etc. Ms. Halverson is a former editor, so she knows whereof she speaks. She has earlier questions (and replies) categorized that make it easy to find advice you are looking for. It's a gem of a site.
She also has a website for her books, http://www.deborahhalverson.com/ as well as an entertaining blog, http://www.deborahhalverson.com/blog