QUOTE(MasterChhaya @ May 5 2014, 06:08 AM)
Serch Engine Optimization (SEO) and Pay Per Click (PPC) is that traffic coming from SEO (organic) is free while traffic generated from PPC is not free (as the name implies you have to pay a cost per click). This is also the reason why you may sometimes see the terms organic search engine listings and paid search engine listings (or Paid Search Advertising � PSA).
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