When it comes to online advertising via search engine, there are two types: Search Engine Optimization and Search Engine Marketing. SEO is the more natural and less annoying version of search engine advertising. SEM is the advertising you see (and most likely ignore) at the top of the search page, it says [AD] under it. It’s also paid for by companies for when certain keywords are searched in the search engine.
The Beauty Of Online Marketing: SEO & SEM
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