Zynga has joined tsunami relief efforts by giving gamers the option to donate through in-game donations through virtual goods in their Zynga games such as FrontierVille, FarmVille and CityVille.

In 36 hours, Zynga gamers have donated more than $1 million toward relief efforts. Zynga chose to partner with Save the Children to raise money for its Japan Earthquake Tsunami Children Emergency Fund. Zynga representatives said that the campaign was created in less than 24 hours and is the largest charitable campaign in company history.

Zynga gamers are able to contribute by buying designated virtual goods within the games such as a sweet potato crop (which doesn't wither for CityVille fans!) a Kobe cow in FrontierVille, radishes in FarmVille, and a royal flush for Zynga Poker. Alternatively, you can donate by using this direct link.