SEARCH ENGINES AND WEB CRAWLERS

In the present age the Internet has become an integral part of human life and, out of 7.02 billion population of the world 2.41 billion people (34.3%) make use of Internet [1]. From .36 billion in 2000, the number of Internet users has increased to 2.41 billion in 2012 that makes an increase of 566.4% in just 12 years. In Asia alone, around 1.07 billion people use Internet that makes approximately 45% of worldwide Internet users. In India itself approximately 0.137 billion people use Internet. It is not far away when one will start feeling that life is incomplete without Internet. Same or higher growth rate is expected in future too

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