13. Biometrics Biometrics comprises methods for uniquely recognizing humans based upon one or more intrinsic physical or behavioral traits. Walt Disney World is the USA's largest single commercial application of biometrics.
14. Mobile telephony For mobile social networks, texted location information or mobile phone tracking can enable location-based services to enrich social networking. Geolocation on web-based social network services can be IP-based or use hotspot trilateration. Mobile phone tracking tracks the current position of a mobile phone even on the move, by linking the signal strength or weakness to nearby antenna masts.