Harvest Farm Cash with Serve!
Earn up to 360 Farm Cash with Serve
We’re giving away a free Serve Money Tree to all U.S. FarmVille players.
You can earn Farm Cash once you place the tree and begin to harvest it.
But that’s just the start.
Get up to 360 Farm Cash when you sign up or convert your Serve account, add money, activate your Serve card, and use it to make qualifying purchases through July 31, 2012.
Source & More information: http://www.serve.com/zynga/farmville/