As usual with our "account milestone" announcements, 8 million players is not the number of active players in the game. It's just the number of accounts that have been signed up on the Free Realms website. However, even if only 1% of those accounts were active, that's still 80,000 accounts playing the game -- a number you still should not scoff at.
So congratulations to SOE on your recent account milestone, and good luck in the Game Developer's Choice awards! Beat out Farmville for us!