Basic applications and guidelines making Internet possible have existed for nearly twenty years. However, the principles were launched in 1991 at the CERN -European center for Nuclear Research - through the publication named the new World Wide Web project. Currently, the Internet penetration level is around 22%1 worldwide and web content may represent more than 988 exabits in 20102. This amount of data, equivalent to Europe’s surface all covered by 2 meters of DVD, confers to search engines and data organization systems a key role in the development of new communication ways. Both Yahoo and Google have initially focused their politics in developing high-value search technologies. Currently Yahoo and Google represent 72,8% of Internet requests3.
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