"Acxiom, Ameritrade, AT&T, Bellsouth Telecommunications, Best Western Intl., Blue Cross Blue Shield, Booz Allen Hamilton, Boston Consulting, Cable & Wireless, Cablecom Media AG, Cablevision, CBS, Charter Communications, Cisco, CitiFinancial, City of Nashville, City of Tampa, Clemson University, Comcast Cable, Credit Suisse, Dow Chemical, EMC Corporation, Ericsson, Ernst and Young, Faurecia, Federal Express, Federal Reserve Bank, Fibercloud, Fiserv, Ford Motor Company, Foundstone, Gartner, Gates Foundation, General Dynamics, Gillette Deutschland GmbH, GTE, H&R; Block, Harvard University, Hertz Corporation, ING Direct, IntelSat, J.D. Byrider, Johns Hopkins University, Kennedy Space Center, Kodak, Korea Telecom, Leggett and Platt, Level 3 Communications, Liz Claiborne, Lockheed Martin, Lucent, MasterCard, McDonald’s Restaurants, Microsoft, National Park Service, NCR, NEC, Nestle, New York Power Authority, New York Times, Nielsen Media Research, Nortel, Perot Systems Japan, Phillips Petroleum, Pricewaterhouse Coopers, Procter & Gamble, Sabre, Saks, San Francisco Intl. Airport, Siemens, Smart City Networks, Smith Barney, Smithsonian Institute, Sparkasse Hagen, Sprint, St. John’s University, Staples, Subaru, Supervalu, Swisscom AG, Symantec, Telecom Italia, Telenor, Texaco, The CDC, The Economist, Time Warner Cable, U.S. Air Force, University of Alaska, University of Kansas, University of Oklahoma, US Dept. Of Defense, US Postal Service, US Secret Service, Visa USA, Volvo, Williams Communications, Yahoo"