Facebook's Growth Slows - WSJ.com

Results from Facebook's final pre-IPO quarter

"The company's profit in the three months that ended March 31 was $205 million, down 32% from the fourth quarter of 2011, and also down 12% from a year earlier. Revenue, though down from the previous quarter, was up 45% from a year earlier.
One yardstick that continues to reflect Facebook's meteoric rise is its monthly active user base, which totaled 901 million as of last month, up 33% from 680 million a year earlier. The company says it now has 488 million monthly users on mobile phones.
Still, Facebook's expenses nearly doubled in the first quarter to $677 million from $343 million a year earlier."

Facebook's Growth Slows - WSJ.com