Zynga has announced that it will launch a Discover Financial Services sponsored Farmville expansion called Winter Wonderland. Players will receive special rewards and farm items for simply by visiting the new expansion, where they must help a Yeti do his Christmas shopping using a Discover bank card.

“Social games bring people together into virtual communities,” explained Mike Boush, vice president of e-business at Discover. “They’re captivating increasingly larger online audiences that include many of our Discover cardmembers. Partnering with Zynga to develop a unique in-game experience helps us connect and engage with players and put more fun in time spent online.”