Near field communication (NFC) tags and devices for tracking products, making mobile payments and providing advertising information; blank near-field communication (NFC) technology-enabled tags for tracking information within a network; NFC readers; radio-frequency identification (RFID) tags and devices; RFID readers; radio-frequency identification tags for tracking information within a network; providing maintenance of on-line databases for others featuring information regarding wireless electronic retrieval of data via near field communication (NFC) technology-enabled devices and RFID technology-enabled devices; Technology-related consultation services regarding the development of software and NFC and RFID technology-enabled hardware for retrieving electronic information ; software as a service (SAAS) services featuring software in the form of push notifications for alerting the public about product recalls; technical support services, namely, monitoring of network systems, servers and web and database applications for product recalls and notification of related events and alerts