Facebook was created by Mark Zuckerberg and others as a social network originally for Harvard students but opened to all with email. It has since expanded internationally with translated versions. Twitter is a microblogging service headquartered in San Francisco with over 200 million users generating 65 million tweets daily. Myspace was the most visited social network from 2005-2008 but was surpassed by Facebook in 2008. It is now owned by Specific Media and Justin Timberlake. Hi5 is a social network founded in 2003 with over 70 million users in Latin America and was one of the top 40 visited sites worldwide until being acquired in 2010. Yahoo was founded in 1994 by two Stanford students as a web portal and directory and remains a popular email