Mafia Wars is an application created by Zynga for both Facebook and MySpace flatforms. And Facebook Mafia Wars is fast becoming the most popular social networking game played by over 9 million users. To become a successful Mafia Wars player, you need to level up fast while building your defense and increasing your profit. Once you’ve reached 100+ level, you start expanding your Mafia family and continuously build stronger defense. Read on to learn some tips on how to become successful in Facebook Mafia Wars.