Most of the people whom I meet in day to day life are always asking me this question "What is SEO".So now I'm trying to explain it.
Basically, Search Engine Optimization is a root of big tree name as Internet Marketing. Search engine optimization (SEO) is the process of improving the visibility of a website or a web page in search engines.
It is one of the most effective things you can do online, getting your web site optimized in such a way that the search engines will reward you by basically sending traffic your way. Its too technical I guess !!!
Generally, whenever you enter a query in a search engine and hit 'enter' you get a list of web results that contain that query term. Users normally tend to visit websites that are at the top of this list as they perceive those to be more relevant to the query. If you have ever wondered why some of these websites rank better than the others then you must know that it is because of a powerful web marketing technique called Search Engine Optimization (SEO).
So SEO is the process which help you to rank your site in search engines and help you to boost your online business.