Zynga Takes Up Challenge

Casual gaming powerhouse Zynga has bought Challenge Games . Challenge is well-known for games offering strong "virtual goods" elements. Zynga has built up its estimated $5 billion in worth and with 200 million users, largely on games like Farmville and Mafia Wars, popular on Facebook . But it has been going to town in an effort to extend its popular franchises. Challenge may provide it with a ...