Redfin CEO Glenn Kelman chose last night's "Naked Truth" event in Seattle to reveal some news about his online real estate startup: it's profitable for the first time. Kelman made the comment during a panel-discussion at the Olympic Sculpture Park with the likes of TechCrunch's Michael Arrington, New York Times Technology Editor Damon Darlin, and others.

In an accompanying Redfin press release, Kelman said: 

Our agents are top-ten producers in almost every market we serve; our website is a cult. Our customers are raving fans. We have plenty of work to do to make money all year round, and there are lots of risks ahead. But for a company that many predicted would never make money, in an industry as battered as ours, Redfin's first monthly profit is a big milestone.

Redfin has made waves with its online discount brokerage service, which is available in a number of markets (it refunds half of its broker's commission to home buyers). The startup is backed by Madrona Venture Group, Vulcan Ventures and others.