［6］Jupiter Research,“Internet Travel”June 2003

［7］2004 TNS Plog American Traveler Survey

［8］2004 TNS Plog American Traveler Survey

［9］Automotive News,May 24,2004,p25

［10］参考JD Power and Associates,November 8,2004。

［11］JDPower,“2002 New AutoshopperCom Study”(JD Power,West Lake Village,CA),October 2002

［12］由于数据获取方法存在着差异，所以就表2—4中由JD Power 所调研的数据而言，2000年和2001年的数据与2004年的数据不具有可比性。

［13］Maney,Kevin“The economy according to eBay,”USATodaycom,https://wwwusatodaycom/money/industries/retail/20031229ebaycover_xhtm December 2003

［14］“Four Nation Survey Shows Widespread but Different Levels of Internet Use for Health Purposes”Health Care News,v2,No11 (May 2002)Harris Interactive,2002

［15］“Four Nation Survey Shows Widespread but Different Levels of Internet Use for Health Purposes”Health Care News,v2,No11 (May 2002)Harris Interactive,2002

［16］“Four Nation Survey Shows Widespread but Different Levels of Internet Use for Health Purposes”Health Care News,v2,No11 (May 2002)Harris Interactive,2002

［17］Manhattan Research,Cybercitizen Health,vol 2,2002

［18］这是在美国食品药品管理局（FDA）对250位普通的实践人员和250位专家所进行的一项研究中得出的结论（Ad Age,January 20,2003,p6）。