1Michael Morris,Minet Schindehutte,Jeffrey Allen.The entrepreneur’s business model: toward a unified perspective[J]. Journal of Business Research . 2003 (6) 被引量：7
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3Rick Edmonds. API Report to Exec Summit: Paid Content Is the Future for News Web Sites, http: // www. poynter, org,/column, asp? id = 123&aid = 164522, 2009. 被引量：1
4Ari Levy, Greg Bensinger. Online sites starting to charge for some content, http: //www. statesman. com/businessltechnology/online - sites - start- ing- to - charge - for - some - content - 151294. html, 2009. 被引量：1
5Amy. Who is willing to pay for Online News? http: //www. cyberjoumalist, net/news/001818, php, 2009. 被引量：1
6Amy. Poll: Most won't pay to read newspapers online, http : //www. cyberjournalist, net/news/. 001818. php. 被引量：1
7PCUK/Harris Poll. Only Five Percent Of UK Readers Would Pay For Online News, http: //paidcontent. org/article/419 - pcukharris - poll - only - five - percent - of - uk - readers - would - pay - for - online - he/, 2009. 被引量：1
8Rick Edmonds. API Report to Exec Summit: Paid Content Is the Future for News Web Sites, http : // www. poynter, org/column, asp? id = 123&aid = 164522, 2009. 被引量：1
