Welcome to the Q&A Forum

Hi There! I'm new to SEOMoz, but not completely new to SEO.  A bit of background: 9 year old content site, medium traffic (low 7 figures unique visitors yearly) with about 85% coming from SE traffic.  (It was 75% but Panda seems to have bumped that up.) I've created this with zero keyword research. I just built a site that I would have liked to have found online. It's a weight loss/fitness website with tools, calculators and articles. I'm going to be working harder on getting traffic from other sources, but I signed up here because I want to make sure I'm taking full advantage of my site when it comes to SEO. Having said that, I'm at a loss as to what to do with a campaign.   My site is huge, with thousands of pages and keywords.  I started a campaign, threw in a few keywords and some competitors just to get started, but this seems so...directionless. How do I figure out what I want to analyze? Thanks! Suzanne