Gadget owners and socialmedia users probably don't know about ZYNGA, but they've certainly harvested corn and raised cows on <em>FarmVille</em>, built huge buildings and entire neighborhoods on <em>CityVille</em>, or even set up ambitious <em>Mafia Wars</em> ambushes. This is how ZYNGA built its success story by capturing people's free time with challenging games on social networks.
Zynga is one of the world's leading producers of social games, and on social media it accounted for 12% of one of the largests company's total revenue.
