CodeCanyon - Viral Coupon v1.5.2 - Like, Tweet or G+ to get a Discount
Make your e-commerce site go viral by offering your customers a discount if they Facebook Like, Google+1 or Tweet about your site. Viral Coupon integrates with WooCommerce to automatically apply a coupon if the user Likes or Shares your link. Viral Coupon is the first of its kind to combine the power of Facebook, Google+ and Twitter with the incentive of a discount. More likes and tweets = More sales $$$!