1.23bn monthly users
By the end of 2013, Facebook boasted 1.23bn monthly active users worldwide, adding 170m in just one year. According to Facebook, 757m users log on to Facebook daily, as of 31 December 2013.
29 - the age of Mark Zuckerberg
Co-founder, chairman and chief executive of Facebook, Mark Zuckerberg is 29 years old and has a net worth of $19bn as of September 2013, according to Forbes. The business magazine placed Zuckerberg in 24th position in its annual world's most powerful people list in 2013 - up one place on the previous year. In 2008, Zuckerberg aged just 23, was named the youngest ever self-made millionaire by Forbes.
Half of all Facebook users have more than 200 friends
New Pew Research Center survey findings show that the average (mean) number of friends among adult Facebook users is 338 and the median comes in at 200 friends. As Pew say: "In other words, half of all Facebook users have more than 200 friends, and half have less than 200."
$1bn - Facebook buys Instagram
On the 9 April 2012 it was announced that Facebook had bought popular photo sharing app, Instagram. The app which now also allows which now also allows users to post videos and share images directly boasts 150m active users.
24m Britons log on to Facebook each day
Facebook published its number of daily users in the UK for the first time in August 2013 and the figures showed that more than a third of the UK population were visiting the site every day. US figures published at the same time showed that one out of three people in the US were visiting Facebook every day.
380,870,942 likes for the top page on Facebook
Facebook launched its pages app in November 2007. The most popular page worldwide is Facebook for Every Phone with 380,870,942 likes, according to Facebook. Worldwide, the Facebook page (110,710,367 likes) and Rihanna page (84,870,224 likes) are second and third most popular.
The most popular page in the UK is for Family Guy with 4,481,025 likes from UK users followed by Rihanna (4,129,365 likes) and Amazon UK (4,097,426).
$61.48 - current Facebook share price
Facebook set the final price of shares in its landmark flotation at $38 (£24) back in May 2012. The stock now changes hands at $61.48.
556m people access Facebook via their smartphone or tablet
Jemima Kiss writes today:
Globally, 556 million people now access the site every day on their smartphone or tablet and at the end of 2013, for the first time, Facebook made more than $1bn in revenue from mobile advertising in just one quarter.
6,337 employees
Facebook has 6,337 employees as of December 2013. The company has offices in 13 locations across the US and 24 international offices in locations such as Amsterdam, Selangor, Seoul and Warsaw.
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