Through Search Engine Optimization [http://seodelhi.ourprofile.org/], you will take advantage of the people who are coming through search engines like Google. The goal of search engine optimization is to ensure that the link to your site is as close to the top of the list of natural search results as possible when words relating to their business are searched. Because more than fifty percent of all purchases online are preceded by the use of a search engine and because people seldom tend to look below the first two or three pages of results of their search, it can be seen that search engine optimization is an important part of getting the web traffic that you need.
It is true that algorithm changes of search engines sometimes results of a website loses it's position in the search engine ranking, but it can be corrected usually with tweaking of the web site. Just as you service your cars or other equipments, from time to time your web pages have to be serviced and tweaked. If your site is building on sound principles and offers useful content, then it should be able to weather the changes in search engine algorithms.
If your website is an important part of your business plan, then you should take a look at your visitors statistics of your website, take a look at your competitor and do whatever you can to improve your website so that it achieves higher rankings in search engine queries for your most important keywords and keyword phrases. If this is going to cost you some money to do, then do not worry about it, you will get that money back from the new customers who will find you when your site become more visible in the search engines Through your important keywords and key phrases.