Advantages of Search Engine Marketing
Search Engine Marketing is an ongoing learning process. Once your in the know on how to do it successfully, the search engines can change how they rank or crawl your site, thus changing you page rankings.
SEO (Search Engine Optimization) is an important Internet Marketing strategy.
Advantages of Search Engine Marketing
"Search engine marketing is achieved through various search engine optimization techniques, paid listings and other related services which increase the exposure of a web-site so as to gain high amount of traffic. • Cost effective: Search engine …"
http://www.promotionworld.com/internet/articles/120611-advantages-of-search-engine-marketing
All web sites need traffic in order to achieve their creators goals, for creating the web site in the first place. You cannot just Build It and They will Come, you need Search Engine Marketing.