Facebook Rolls Out Offers Feature For Brands
Nice article on this over at Social Bakers:
Summary: Facebook Offers is a discount/promotional tool you create from your business page, which allows you to reach a larger audience. Once you create an offer, it will be shared with people who have liked your page, as well as allowing them to share it with their friends. As soon as a person redeems your offer, it will be automatically shared with their friends. Currently, this feature is available to all Facebook Pages with more than 400 fans.