Encourage your existing customers to talk about you online, become your fan on Facebook, follow you on Twitter, etc. (However, be careful in certain situations; for example, Yelp forbids businesses from soliciting reviews, but you could link to your Yelp profile and put a Yelp sticker in your window.)
The key to online marketing these days is providing useful information. This makes you stand out from your competition, helps establish trust with potential new customers and makes your site appear in search engine results more often. Create a blog and write articles (with photos) related to interior design, decorating for the holidays, setting Thanksgiving dinner, creating a relaxing bedroom--topics that lend themselves to purchasing more furniture. Interact with interior design blogs and provide useful information. Post images of your latest inventory and encourage existing customers to post photos of their new furniture in their homes.
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