Shares of Zillow are down after the company posted quarterly results which were slightly worse than expected. A quick look at the numbers shows Zillow posted a loss of 5 cents a share, a penny worse than expected. Revenue was better than expected, approaching $79 million. One of the highlights of the quarter was the companya€™s marketplace segment, which includes real estate and mortgages. It jumped 72% from the same period last year. Despite the results, CEO Spencer Rascoff said there's still quite a bit of work to be done to make Zillow a household name and capture more online real estate advertising, something he hopes Zillow will accomplish with the pending Trulia acquisition.