A book of First Class stamps <a href=" http://www.madeiraplastica.ws/prosta-plus-peru/ ">prosta plus sabal</a> Zillow has been battling competition from online real estate search companies like Trulia and Move, which operates Realtor.com, as the housing market’s rebound lures more home-hunters. To do that, it has made about seven acquisitions over the past two years.