CoStar Group, Inc.

Market & IT Research: 2010 Final Market Size and Share Report— Report published on August 4, 2011

CoStar Group to buy LoopNet for $860M— Headline published on April 27, 2011

Market & IT Research: 2010 Market Forecast and Trends Report— Report published on December 9, 2010

Half Year 2009 Results Show Negative Growth at Most Top MRRS Companies— Insight published on September 3, 2009

Market Research, Reports and Services Grew 7.9% in 2008— Insight published on August 27, 2009

Market Research, Reports & Services: 2008 Final Market Size and Share Report— Report published on August 25, 2009

CoStar Group, Inc. Announces Second Quarter 2009 Results— Headline published on July 22, 2009

CoStar Group Acquires Property and Portfolio Research, Inc.— Headline published on July 20, 2009

Market Research and IT & Telecom Research, Reports & Services: 2007 Market Forecast and Trends Report— Report published on October 29, 2007

CoStar Acquires Propex in the UK, Goal to Lead in Europe— Insight published on March 1, 2007