The development of a very fast internet was impact to the development of search engines. It also turned out to have an impact on the development of sciences that explore the use of search engines such as Search Engine Optimization (SEO) and Search Engine Marketing (SEM) and finally affects the uniformity of the lack of defining these two disciplines (ed: SEO and SEM). There is a rate that SEO and SEM is actually the same branch of science, others think otherwise. However SEO is the science of SEM (SEM is the scientific view that use search engines as a tool to market the product, and one way is to use SEO). I will try to explain it to you.
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Every site needs traffic. Whether what you are selling or who you share on your site, you still will need the traffic. Sites that you create your course for anyone hoping to visit it? If you have a site but no one who visited, you may not be considered to exist in cyberspace.
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