Question about Facebook games?

[Summergirl18]

On the left side of the homepage where all my apps are, beside a few there are numbers in parenthesis. It will say like;
Petville (8)
Farmville (2)
What does that mean?

[derekmski]

I think these are notifications from within the games, letting you know you have something happening in the game.

[The correcter]

It is the number of friends of yours who are also playig those games. For example petville is played by 8 ppl in ur friend list..
Thank you.
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