SEATTLE, Jan. 11, 2013 /PRNewswire/ -- Zillow, Inc. (NASDAQ: Z), the leading real estate information marketplace, today announced a renewal of its strategic marketing program with Century 21 Real Estate LLC. In 2010, CENTURY 21 Real Estate was the first national franchisor to participate in Zillow's advertising platform. Now, 34.7 million monthly visitors to Zillow, Inc.'s mobile apps and websites have direct access to homes for sale from the world's largest residential real estate sales organization. CENTURY 21® listings will automatically appear on the Yahoo!®-Zillow® Real Estate Network, the largest real estate network on the Web i, which includes Zillow.com, Yahoo! Homes and Zillow Mobile. With the renewal of the strategic marketing program, CENTURY 21 agents also will continue to receive preferred marketing benefits. The partnership benefits agents, buyers and sellers by ensuring anyone can easily access current and accurate CENTURY 21 for-sale listings with high-quality photos, detailed descriptions, and enhanced CENTURY 21 branding. "Our relationship with Zillow has empowered our agents with a valuable marketing program, providing extraordinary reach and visibility for their listed properties," said Bev Thorne, chief marketing officer at Century 21 Real Estate LLC. "We look forward to continuing our relationship with Zillow to help our agents reach tens of millions of consumers through Zillow's mobile apps and websites." "We are very proud of our strong relationship with the CENTURY 21 System, and I'm extremely pleased to extend our marketing partnership," said Greg Schwartz, chief revenue officer at Zillow. "This partnership affords CENTURY 21 agents and their customers extremely efficient online marketing tools with automated listing syndication on the largest real estate network. This is a significant advantage for sellers to reach active and highly-qualified home shoppers who want free and easy access to all the listings in their area." Through this advertising partnership with Zillow, CENTURY 21 agents have the ability to take advantage of Zillow's cost-effective advertising programs such as ZIP code-targeted searches and Showcase Ads to increase traffic to their profiles and individual listings.