In the internet marketing segment, the SEM or Search Engine Marketing is the set of marketing methods or processes of improving visibility of the website in the Search Engine results pages. SEM – Search Engine Marketing could deliver great numbers of competent viewpoints to your website. The complete SEM – Search Engine Marketing campaign should intend to influence viewpoints for taking the specific actions you wish them to take. For driving ongoing progress that would net you the maximum achievable online marketing ROI, your SEM – Search Engine Marketing campaign should close the loop by providing metrics and analytics. There should be the systematic SEM strategies that include:

· SEM attempts for improvise rankings for the related keywords in the search results by improving the structure, its contents as well as related back link counts of the web site.
· Pay per click advertising segments mediate sponsored search engine listings for driving the traffic to the web site. The advertiser proposes for search terms and the search engine ranks based on the advertisements on the competitive auction besides other factors too.
· Paid insertion provides registering into search engines, specifically comparative shopping sites.
· Social media optimization encourages by introducing ideas within online societies hoping that they would multiply virally.
· Video search marketing tries promoting the business by intentionally introducing short video clips on the web sites to be selected by the search engine surfers or supported through internal rating systems.
For all those businesses who sell their stuff or services online or who use their web sites for creating sales leads, the SEM or Search Engine Marketing is of great importance. Other objectives for SEM include: building the brand, improving goodwill with investors, developing the media coverage and attracting the traffic to practical business locations.

It’s believed that the SEM has initiated during late 1990s as the result of remarkable augmentation of web sites on the internet which in turn attracted more and more people use internet. Thus requirements of the ideal tool for finding intended information more efficiently and easily, the creation of search engines said to have been taken place. The internet marketers have marked that the style of extensive usage of search engine has responded by attempting for beating the search engine’s algorithm for getting web site that they were optimizing into the top SERPs. On the other side, the search engines have responded by enhancing their algorithms for reducing the abuse by reckless search engine marketers.

In other words, Search engine marketing (SEM) is advertising your website on the internet through Banners, Pop-ups, Pop-unders, Pay Per click management through Google adwords, MSN Adcenter, Yahoo Search marketing (YSM/Overture) or we can use practice like Pay per lead, pay per impression, pay per call or pay per action.