Real estate Web site has hit an important milestone: the company is now profitable, according to CEO Pete Flint.

Trulia has been in the black for the past two months, Flint told Reuters in an interview on Tuesday, as the web site’s visitors and advertisers have continue to grow at a healthy pace.

PeteFlintUnique visitors to Trulia’s Web site, which offers listings for home sales and rentals, now total 9 million, up from 6 million visitors at this time last year, said Flint. The company’s revenue is growing at 100 percent clip, though Flint would not divulge the amount of money that Trulia is making.

The last few years have been a “roller coaster” ride for anyone in the real estate business, Flint said, but he said that he believed the housing market was slowly recovering.

Trulia competes with Zillow in the online real estate listings business, and shares of the privately-held San Francisco company are among the most sought after by investors who buy stock in private companies. According to a report by SecondMarket, an online market for trading shares in private companies, Trulia was among the companies that saw the greatest percentage of increase in interest among investors during the third quarter, alongside private firms like Groupon, Pandora and Zipcar.