SEATTLE and SUNNYVALE, Calif., Feb. 3, 2011 /PRNewswire/ -- Zillow.com® and Yahoo!® Real Estate (http://realestate.yahoo.com) today launched an exclusive partnership that brings together the two sites and creates the largest real estate network on the web, according to comScore® Media Metrix®(1) Zillow's sales force now sells local advertising across both sites, and the 4 million for-sale listings on Zillow now also appear on Yahoo! Real Estate. Zillow® and Yahoo! Real Estate announced plans for the partnership in July 2010.