On the 26th September 2006 the social networking service and website Facebook was open to anyone over the age of 13 who had a valid email address – thus starting the Facebook phenomenon.
Since then, Microsoft has purchased a share of Facebook that includes the rights to place international ads on the site. Facebook turned cash-flow positive in September 2009, its value of$41 billion was slightly higher than eBay’s in November 2010 and it became the third largest US web company after Google and Amazon.
In June 2011, statistics showed that Facebook reached one trillion page views for that month. In December 2011, Nielsen Media Research did a study that found Facebook is the second most accessed website in the US.
The film The Social Network based upon the story of Mark Zuckerberg was released on 24th September 2010.