Search Engine Marketing is one of the several facets of Internet marketing. Known also by its acronym SEM, it is a marketing model designed to effect promotion of web sites by making them more conspicuous to Internet visitors. Without proper visibility, a web site is as good as non-existent. So, Search Engine Marketing is imperative for Internet marketing, and for every form of dispersal of information through the medium of Internet.
One of the common ways in which SEM is done is by search engine optimization of the web site. This is mainly done by the right placement of keywords in the web content and by adding keywords within description tags that would make search engines favorably disposed towards it.
Another way in which Search Engine Marketing is managed is by contextual advertising. Here marketers place ads on other sites or portals that carry information relevant to their products so that the ads jump into the circle of vision of browsers who are seeking information from those sites. The ads are generally banner ads or text ads and often appear as pop-up ads. Google was the first one to start Search Engine Marketing by contextual advertising but now other networks and search engines have also joined the fray.
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