Know your overall referral stats cold. Understand the trends and where your WINS are with SEO and Social Media Marketing.
So get out there are network your stuff. And here's one last tid bit. Yesterday a single Tweet from a Twitter authority drove over 500 views to my site in less than an hour. That's traffic I can't pay for. But I can say thank you as many ways as possible. And you can bet I'm paying attention to that Twitter account. It was @tweetsmarter, and I'd suggest you get over there and check out what they've built. (My own social way of saying thank you.)