Nowadays, many people use a website to promote their business, products, and services. With the advent of search engines it has become even easier for the customers to search for the stuff online. For a website to be delightful its link should land in the first three pages which the search engine brings and the rank of the page should be high which means many visitors come to the site.

This can be achieved by applying search engine optimization or popularly known as SEO. This is a advertising strategy which increases the excellence and quantity of traffic flow to a particular website via search engines.

SEO not only affects the search engine results, but also image search, video search and industry specific erect search engines. It decide how a search algorithm functions and searches what be popular with people. When a website link is submitted to a search engine, a spider crawls through a page to gather links which lead to other pages and stores that page on the wine waiter of the search engine.

The in order collected from these pages is sent to the indexer, whose job is to take out in order from those pages such as the keywords plus their weights, the location of the page and other links that are stored for the spider to move slowly in future.

In the beginning, the search engine optimizer algorithms were dependent relative on the keywords, Meta tags, and index files provided by the Webmaster. Meta tags provided information about a particular page, but using them for indexing the pages did not prove to be successful as some Webmasters extra irrelevant Meta tags to add to the number of hit and earn huge ad revenue. They even changed the HTML of the web pages to achieve a good rank for the page. But this was a case of abuse as it gets neither here nor there pages.

Search engines then began utilizing complex ranking algorithm, which were difficult for the webmasters to manipulate so as to give web surfers with genuine results. The rank of the web piece of paper was future exactly by functions using force and quantity of the inbound links. The higher the rank of the page the more chances it had to be viewed by a person.

Later algorithms were urbanized which careful various other on-page factors such as rank and off-page factors such as hyperlink. Since the webmasters could not control the page rank, they began exchange selling and trade links, which lead to link spamming and even creation of numerous sites dedicated for this purpose.

Algorithms became more complex by every passing day and top search engines kept their algorithms a secret. As the cost of SEO increased, advertisers were roped in to pay for it, which finally resulted in high quality web pages. Though investing in SEO is very fruitful, but at the equal time is perilous because with out one prior take in the algorithms being used are bound to change and the search engine will stop directing visitors to the page.

Many consultants are available in the market that provides SEO services. They manipulate the HTML source code of the web site like menus, shopping carts and sometimes still the content of the website to draw extra traffic. Search engines like Yahoo has algorithms that extract pages not according to the page rank but according to the cost per click or set fee, that is if a advocate desires that the page surround his ad be displayed, he is predictable to pay money for it.

This is a point of argument, as only the big businesses will be able to augment the number of hits of their page but not the small business who might be having a better quality page.

Google Ad Words explores ads which have words typed in the search box by the surfer. The Million Dollar Homepage started the concept of Pixel advertising, which is a graphical kind of advertising. Depending on the pixels, the space is sold to the advocate.

Keyword advertising involves advertisers who buy URLs of a site and place their ads at that site. Thus SEO is a market in its own which is soft huge results for businesses on Internet.

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