About SEM category
Search engine marketing, often used as search engine promotion refers to the overall process of marketing a site on search engines. This includes submission, optimization, managing paid listings and more.
These terms also highlight the fact that doing well with search engines is not just about submitting right, optimizing well or getting a good rank for a particular term. It’s about the overall job of improving how your site interacts with search engines, so that the audience you seek can find you.
SEM is essentially an art of being able to achieve large number of web pages of the site into the search engine database and getting top rankings for the site.