How many of you have Facebook account? I do have one. Facebook is now the world’s largest network, with 800 million users worldwide as of September 2011.
They had an interesting research about Facebook users. The researchers used a set of algorithms developed at the University of Milan to calculate the average distance between any two people by computing a vast number of sample paths among Facebook users. They found that number of links from one arbitrarily selected person to another was 4.74.
It is no surprise that Facebook has become one of the titans of the Internet, challenging even Google with its vision of a Web tied together by personal relationships and recommendations, rather than by search algorithms. In a major expansion, Facebook has spread itself across other Web sites by offering members the chance to “Like’' something, share it with their network, without leaving the Web page they are on.
Arbitrary
Adj mot seeming to be based on a reason, system or plan and sometimes seeming unfair.
The choice of players for the team seemed arbitrary.
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