A system for marketing real estate includes a property data device and a personal data device. The property data device is to be located in the vicinity of a real estate property, and the personal data device is to be provided to a user. The property data device is operable to transmit the property information...http://www.google.com/patents/US7328163?utm_source=gb-gplus-sharePatent US7328163 - System and method for distributing information
