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edcorner.stanford.edu— “The latest business model for web-based companies is to provide services to the consumers for free. Roberts talks about the operations of such a model, in which advertising is the only source of revenue”
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edcorner.stanford.edu— “The latest business model for web-based companies is to provide services to the consumers for free. Roberts talks about the operations of such a model, in which advertising is the only source of revenue”
