1. An electronic receipt system comprising: a point-of-sale (POS) terminal having a near field communication (NFC) device for communicating with a mobile wireless communications device during a transaction for purchasing at least one item; and a server communicating with said POS terminal and comprising a processor and memory associated therewith for receiving a user identifier transmitted from the mobile communication device via said NFC device, verifying an enrollment status of the user identifier, based on results of the verifying, generating an electronic receipt associated with the transaction, and generating at least one social media network link feature in the electronic receipt and associated with the at least one item, the at least one social media network link feature for sharing the purchase of the at least one item on a corresponding at least one social media network.