engine - 3:46 pm on Jan 31, 2013 (gmt 0)

Facebook, Inc. (NASDAQ: FB) today reported financial results for the fourth quarter and full year ended December 31, 2012. "In 2012, we connected over a billion people and became a mobile company," said Mark Zuckerberg, Facebook founder and CEO. "We enter 2013 with good momentum and will continue to invest to achieve our mission and become a stronger, more valuable company." Facebook 4Q Revenue Reaches $1,585 Billion, With Ad Revenue Up 41pct, Ending Full Year at $5.089 Billion [investor.fb.com]

Fourth Quarter 2012 Operational Highlights •Monthly active users (MAUs) were 1.06 billion as of December 31, 2012, an increase of 25% year-over-year •Daily active users (DAUs) were 618 million on average for December 2012, an increase of 28% year-over-year •Mobile MAUs were 680 million as of December 31, 2012, an increase of 57% year-over-year •Mobile DAUs exceeded web DAUs for the first time in the fourth quarter of 2012 Recent Business Highlights •Mobile revenue represented approximately 23% of advertising revenue for the fourth quarter of 2012, up from approximately 14% of advertising revenue in the third quarter of 2012 •Facebook launched Graph Search Beta, a structured search tool that enables users for the first time to find people, places, photos and other content that has been shared on Facebook •Launched Facebook for Android 2.0, completely rebuilt to deliver improved stability and faster performance and opened Facebook Messenger to anyone with a telephone number Fourth Quarter 2012 Financial Highlights Revenue — Revenue for the fourth quarter totaled $1.585 billion, an increase of 40%, compared with $1.13 billion in the fourth quarter of 2011.