There has been so many debates in the past whether Twitter can be a Facebook-killer. Here is a stat that makes all the discussion futile. Forget Facebook, the Facebook app Farmville is bigger than Twitter. By miles.
Here are the top ten Facebook apps and their monthly unique visitors. For the record, Twitter has around 18 million uniques.
1. FarmVille : 69.2 million
2. Causes : 33.9 million
3. Cafe World : 30.8 million
4. Happy Aquarium : 27.4 million
5. Mafia Wars : 26.8 million
6. Fishville : 21.8 million
7. Pet Society : 21.5 million
8. Texas HoldEm Poker : 19.8 million
9. YoVille : 19.1 million
10. Facebook for iPhone : 18.7 million