msnrealestate22Zillow continues to boost its power in the online real estate arena, announcing today that it has begun powering the home shopping experiencing on MSN Real Estate. It marks yet another coup for Zillow, since MSN Real Estate had previously worked with Move Inc.’s Realtor.com.

It is the second portal deal that Zillow has taken over from Move Inc. in the past seven months, following a deal it struck in December with AOL Real Estate. Move Inc.’s Realtor.com also had previously powered the real estate functions of AOL.

Zillow and Move Inc. are bitter rivals. The competition heated up earlier this year when Move Inc. sued Zillow over the hiring of former exec Errol Sameulson.

Spencer Rascoff
Spencer Rascoff

“Integrations like this are important for home sellers and real estate professionals who list their homes on Zillow because it helps them achieve maximum exposure at no additional cost,” Zillow CEO Spencer Rascoff said in a press release today. “We’re looking forward to collaborating with MSN and to helping the millions of home shoppers who use them each month find their next home.”

MSN Real Estate is the 7th most visited real estate portal in the U.S. with 5.1 million visitors in March, and the deal with Zillow means that it now powers real estate search for five of the largest real estate sites in the country, including Zillow.

Zillow also partners with Yahoo! Homes, AOL Real Estate and HGTV’s FrontDoor.com.

Zillow’s traffic numbers are growing rapidly. In May, it topped 80 million unique visitors.

The stock also continues to soar, now trading above $140 per share, giving Zillow a market value of $5.6 billion.

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