LinkedIn Template:IPAc-en is a business networking website for people in professional occupations. Founded in December 2002 and launched on May 5, 2003 by Reid Hoffman, Allen Blue, Konstantin Guericke, Eric Ly and Jean-Luc Vaillant,[1] it is mainly used for professional networking. In 2006, LinkedIn increased to 20 million viewers.[2] Template:As of, LinkedIn reports more than 259 million acquired users in more than 200 countries and territories.[3][4]

The site is available in 20 languages,[3] including English, French, German, Italian, Portuguese, Spanish, Dutch, Swedish, Danish, Romanian, Russian, Turkish, Japanese, Czech, Polish, Korean, Indonesian, Malay, and Tagalog.[5][6] Template:As of, Quantcast reports LinkedIn has 65.6 million monthly unique U.S. visitors and 178.4 million globally,[7] a number that as of 29 October 2013 has increased to 184 million.[8] In June 2011, LinkedIn had 33.9 million unique visitors, up 63 percent from a year earlier and surpassing MySpace.[9] LinkedIn filed for an initial public offering in January 2011 and traded its first shares on May 19, 2011, under the NYSE symbol "LNKD".[10]

LinkedIn's sales revenue has grown by an average of 89% over the past yearTemplate:When, and its net profit has grown by an average of 139% annually.[11] The Verge Startups blog listed it as one of the most successful startup companies by market capitalization, revenue, growth, and cultural impact.[11]

It is the most redundantly used social network.

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