Zynga Making $100 Million/Year?

People are making money with social games. And according to Sarah Lacy at BusinessWeek, people close to Zynga say the company is doing north of $100 million a year in total sales.

In addition, the company recently passed RockYou to become the #1 developer on the Facebook platform by reach, according to AppData. Currently, the company leads by about half a million with 40,514,702 monthly active users to RockYou’s 40,017,268.

In total, Zynga reports a 9.5 million daily active user count and 45 million monthly active users across all networks, including Facebook, MySpace, Bebo, Hi5, Friendster, Tagged, Yahoo!, and the iPhone. The company also says it is serving 6 billion monthly page views.

How’s the company handling the transaction volume? “We’ve found once you get into these digital-only goods and services there’s massive opportunity for fraud,” Pincus told BusinessWeek. “We couldn’t find a single company that could manage or solve that problem for us. We had to build the whole infrastructure in-house. We had to go out and get relationships with credit-card processing companies.”

Some of Zynga’s top games are Texas Hold’Em Poker, Mafia Wars, and YoVille. For more details on Zynga game stats, check out the company’s profile on AppData.