If the thought of marketing your book sends chills up your spine (and I don't mean the good kind), then the Marketing For Romance Writers group may be for you. I heard about them from an authors' loop and since I knew zilch about marketing thought it wouldn't hurt to join. This yahoo group shares advice on marketing, promotion, career building, branding, etc. Only marketing-related posts are allowed, so you don't get spammed with promos!

Join their Yahoo group here or visit their Marketing Blog or Authors Blog.