Trulia and Zillow — have agreed to a merger. They arent even planning any integrations short term, just like with StreetEasy, says Doug Perlson, CEO of the online brokerage RealDirect. StreetEasy was another online-listings site acquired by Zillow last year. Zillow CEO Spencer Rascoff says the goal is to create a suite of real estate sites, much like IAC has done in the world of online matchmaking.