CHICAGO, June 17 /PRNewswire-FirstCall/ -- Grainger President and ChiefExecutive Officer James T. Ryan will be presenting Wednesday, June 18, 2008,at the William Blair & Company 28th Annual Growth Stock Conference in Chicago,Ill. The audio webcast of the event, scheduled for 1:10p.m. CDT, will beavailable for 30 days at the following web site,http://www.wsw.com/webcast/blair13/gww/.

W.W. Grainger, Inc. (NYSE: GWW), with 2007 sales of $6.4 billion, is theleading broad line supplier of facilities maintenance products servingbusinesses and institutions in the United States, Canada, Mexico and China.Through a highly integrated network including more than 600 branches,18 distribution centers and multiple Web sites, Grainger's employees helpcustomers get the job done.

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