Yahoo! has announced that it has signed a partnership with Zynga. This will give the 600 million Yahoo! users worldwide access to Zynga’s games, right on the heels of their deal with Facebook.

“Yahoo is focused on providing compelling, personally relevant experiences and social games are core to this experience,” said Hilary Schneider, executive vice president, Yahoo! Americas. “Zynga will bring top notch social game experiences to Yahoo!, including through our open platforms such as Yahoo! Application Platform and Yahoo! Updates. Yahoo! will also continue to work with other partners, developers and publishers to bring compelling innovations and experiences from across the web to our users.”

Zynga’s games will be available across Yahoo!’s properties, including the homepage, Yahoo! Games, Yahoo! Mail, and Yahoo! Messenger. Users can provide updates across various social networks while playing Zynga games on Yahoo! properties and the games will be integrated into Yahoo! Application Platform and OpenSocial container.

“With over 35 million unique users playing our games every single day, social games are fast becoming a leading source of entertainment worldwide surpassing most television shows,” said Mark Pincus, founder and CEO of Zynga. “Our partnership with Yahoo! gives millions of new users the ability to connect with friends and families through games.”