Zynga uses Puppet to manage configuration of FarmVille’s web farm

Farmville is idd very popular, even my wife and parents are playing it, (I don't have time for this)

They are lucky that open-source exists coz there aren't so many tools to manage this scale of grow

If you see that after 4day's of the launch there ware more then 1.000.000 players ...
and after 60 day's 10.000.000