Always respond quickly to any inquires you get from your website. I would also suggest setting up an Auto-Responder for your website. There are over 40,000 news group on the net on just about every topic you can imaging. Find some pertaining to your industry and partake in the discussions. At the bottom of your email do the work for you.
People love getting something for free.
Usually no matter what business your in, whether your selling products or a service you should be able to do this one. Having a contest brings a surprising amount of people to your site. If you sell baskets for example, give one basket away per month, or every other month. There are many places on the net to announce a contest. I have listed a few below.