Internet has provided its users with an efficient enough and quality-driven source of information in form of the interconnected web of documents. Apart from that it also facilitates its users with some of its really interesting and interactive features served in the package of all these prevailing commercial and social networking websites like facebook, Twitter, flipcart, amazon.com etc. In that particular concern of availability of information and processing it to derive some more interesting results this paper has been written to present the review of some already performed and worth mentioning contributions made by the experts in the field of information on web.