If you thought Zynga's recent peace treaty with Facebook meant the end of its efforts to expand its reach beyond the social network, think again. Today, Zynga has announced that it has forged a deal with Yahoo to feature its games throughout Yahoo's network — a move that will put Zynga's games in front of Yahoo's 600 million users. At this point details on the deal are a bit vague — the games aren't rolling out onto Yahoo for a couple of months, and neither company has announced which games will be integrated. That said, we can likely expect Zynga megahits like Farmville to be featured prominently, perhaps even on the Yahoo Homepage (which would be a huge win for Zynga). Yahoo also says that games and/or updates will be available through many of its properties, including the Yahoo Games portal, Yahoo Mail, and Yahoo Messenger. Games will be deployed in the US first, followed by a global rollout.