Today online marketing bussiness is very popular so seo services is getting popular day by day. there many option to get business, SEM ( Search engine marketing). it has three part. PPC, SEO And SMO.
PPC is a pay per click, it's very costly but SEO and SMO is related with sites promotion which is very good to get business. SMO is social media optimization.
it's best to increase visitors. but seo is a stradgy to get visitors from site.
so you can say that search engine optimization is good and cheap in comparison with ppc.
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