0001057352-08-000038 DEF 14A 4 20080610 20080429 20080429 20080429 COSTAR GROUP INC 0001057352 7389 522091509 1231 DEF 14A 34 000-24531 08786122 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814 3012158300 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814 DEF 14A 1 proxy2008.htm 2008 PROXY STATEMENT GRAPHIC 2 afsign.gif ANDREW FLORANCE GRAPHIC 3 jcsign.gif JONATHAN COLEMAN GRAPHIC 4 costarlogo.jpg COSTAR LOGO