Lessons Learned: CPI > CPC
Startup Lessons Learned
JANUARY 11, 2009
Lessons Learned by Eric Ries Sunday, January 11, 2009 CPI > CPC Google revolutionized advertising by popularizing pay-per-click. Because social networks have generated staggering quantities of traffic without generating as much economic value from traditional advertising models, theres a big opportunity to buy traffic on a new model.
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