Credit:
The popular casual game boasts a current 69 million monthly active players, making it the largest Facebook application by a factor of more than two to one over the next highest competitor. Their daily active players count is now up to 26.5 million, up from 11 million just three months ago. That's an astonishing growth rate that almost any company would be drooling over.
Credit:
While Twitter hasn't itself released official user stats, research puts the figure close to 18 million by the end of the year. It might be a bit of a pot shot, but the "FarmVille vs. Twitter" statistic is a telling reminder of the size difference between the two services.