Affiliate marketing is an online marketing technique for businesses who can market their products and services at reduced costs.This is performed by placing several ads into other sites,and when anyone clicks this ad they are directed to this site.The question is where the ads will be placed .This is where the work of the host sites come in.The advertisements will be placed in the host sites and they will be paid for every click of the advertisement.This is where PPC comes into the picture.Thus we find there exists a clear symbiotic relationship that exists between the advertisers and the host site.

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