Search engine marketing also knows as SEM is the extended version of SEO. It is an all-around campaign that does not limit the work to onsite factors.

SEM includes link building, article publishing, and general brand recognition online.

Search engine marketing is usually what you would opt for if you wish to obtain top 10 search engine rankings. The combined effort of search engine optimization and offsite factors are what make the difference between small revenue and beating out the competition.