According to the webmasters and content providers it began optimising the mid of 1900’s. so basically Link Building is the first search engine in the web cataloging the early web. Site owners started to recognized the value of having their site highly ranked and visible in search engine results. the early versions of search engines which the web masters provided information such as the keyword meta tag.

Types of Link Building : One Way Link Building - It is a one way process where one site gets a link on another website due to the quality and usability purposes. the website whose link is posted need not to provide exchange link on a site on which is posted.

Reciprocal Link Building - It is a two way process where links are exchange between two websites on one to one basis.

Three Way Link Building - It is one way link exchange between three websites, Like - Site A gives to Site B and Site B gives to Site C to Site A.