In   the  original s1 filling of facebook in feb 2012 they told that they have 845 monthly active users  which certainly make it big social gaint  of the world.now facebook  upadate their s1 with some amendments.

Facebook had 680 million monthly active users as of March 2011 and ratio increases 33% in March 2012.And they  told

“We had 526 million daily active users (DAUs) on average in March 2012, an increase of 41% as compared to 372 million DAUs in March 2011.

 Doing the math, that’s +56 million users in about 11 weeks. We can in no way predict that the growth rate of Facebook will remain at a constant 56 million users per 11 weeks, but let’s just imagine it does, just for fun. In that case, we can expect them to hit 1 billion MAUs well before the end of the year – sometime around early September

Facebook also dropped some additional stats. Users now generate 3.2 million likes and comments per day, up from 2.7 million in February. Total friend connections across the network has jumped from 100 billion to 125 billion. And there are a arranging  300 million photos uploaded every day.

On the financial side of things, Facebook made $1.058 billion in revenue  in Q1 of 2012. That’s up nearly 45% from Q1 2011, but down just a bit (6.5%) from last quarter. Advertising accounted for $872 million of their Q1 2012 revenue.