Earn free FarmVille Farm Cash in promotions with Pepsi, Zumba et al.

Zynga doesn't care if you're too busy crafting Pink Carnation Tea, because there is free Farm Cash to be had. Three more FarmVille Sponsored Links were discovered recently by FarmVille Feed thanks to Pepsi, Zumba and American Express. While not all of them will be available to you at the same time, consider this a primer on all the free Farm Cash that's bound to head your way soon enough.