Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW 12.08.04 CDW'S Average Daily Sales Increase 9.6 Percent in November 2004 12.06.04 CDW Corporation to Present at Raymond James IT Supply Chain Conference 11.15.04 CDW Launches 'Tech Twister' Makeover Program Featuring Technology From IBM, Intel And Linksys 11.11.04 Stephan A. James Elected To CDW Board Of Directors 11.09.04 CDW'S Average Daily Sales Increase 11.2 Percent In October 2004 10.28.04 CDW And Parco Offer First Ultra-Wideband RFID Systems For Health Care, Safety And Emergency Management Organizations 10.19.04 CDW Reports Third Quarter Results 09.22.04 CDW Posts Webcast of Banc of America Investment Conference Presentation 09.14.04 CDW's Average Daily Sales Increase 26 Percent In August 2004 09.10.04 CDW Pilots Strategic Partnerships with Technology Solution Providers 07.23.04 CDW Announces Fourth Share Repurchase Program 07.13.04 CDW To Release Second Quarter Results On July 20, 2004 06.24.04 CDW Ranks Sixth On Nationwide "Best Places To Work In IT" List 06.14.04 CDW's Average Daily Sales Increase 29 Percent In May 2004 06.08.04 CDW To Announce May Sales on June 14, 2004 05.20.04 CDW Corporation Announces 20 Percent Increase in Annual Dividend; Continues to Repurchase Shares 04.06.04 CDW Earns Cisco Premier Certification. Customers Benefit from Expanded Access to Expertise and Resources 04.05.04 CDW To Release First Quarter Results on April 15, 2004 03.31.04 CDW Climbs FORTUNE 500 List, Ranks In Top Ten Percent In Key Categories 03.25.04 CDW Corporation Prices Secondary Offering 03.16.04 CDW Named To Training Magazine's Top 100 03.12.04 CDW Corporation Files Registration Statement for Secondary Offering 03.10.04 CDW's Average Daily Sales Increase 31 Percent in February 2004 03.01.04 CDW Again Claims Top Industry Ranking On FORTUNE's "Most Admired" List 02.24.04 CDW Announces IDC White Paper Offering Best Practices for I.T. Purchasing Decisions 02.23.04 Constellation Energy Group Chooses CDW As Primary Supplier For I.T. Products 02.18.04 CDW Corporation's CEO to Present at Upcoming Conferences 02.11.04 CDW's Average Daily Sales Increase 27 Percent in January 2004 02.02.04 CDW Helps Organizations Avoid Software Licensing Pitfalls 01.14.04 CDW Wins BtoB Award For Best TV Commercial 01.05.04 CDW Honored As A Top Place To Work For Sixth Straight Year