Interesting Facebook facts

845 million monthly active users as of December 31, 2011, an increase of 39% as compared to 608 million monthly active users as of December 31, 2010.
483 million daily active users on average in December 2011, an increase of 48% as compared to 327 million daily active users in December 2010.
Over 425 million monthly active users who used Facebook mobile products in December 2011.
During the month of December 2011, Facebook had an average of 360 million users who were active with Facebook at least 6 out of the 7 days of the week.
There were more than 100 billion friend connections on Facebook as of December 31, 2011.
250 million photos per day were uploaded to Facebook from October 1, 2011 to December 31, 2011.
Users generated an average of 2.7 billion Likes and Comments per day during the three months ended December 31, 2011.
More than 12% of Facebook’s revenue in 2011 came from Zynga, makers of Farmville .
68 percent of Facebook’s revenue comes from ads or Zynga.