Zillow (Z) will bring its mortgage research tools to AOL (AOL) with an expected 2012 launch, the real estate website announced Monday. AOL's Real Estate and DailyFinance pages will host financial information from Zillow, including a mortgage calculator, real-time mortgage interest rates and personalized loan quotes. "With historically low mortgage rates, it's more important than ever for home shoppers and homeowners to understand their mortgage options and to shop around for the best rates," according to Zillow CEO Spencer Rascoff. Zillow is set to announce third-quarter earnings Wednesday after the market close. The Seattle-based company reported a $1.6 million profit in the second quarter after it went public in July. Write to Andrew Scoggin. Follow him on Twitter @ascoggin.