A method for use in marketing includes detecting, at the point-of-sale, a plurality of Uniform Product Codes associated with respective items purchased by a customer. The method also includes transmitting, on a substantially real-time basis, the plurality of Uniform Product Code over the Internet to...http://www.google.co.uk/patents/US6993498?utm_source=gb-gplus-sharePatent US6993498 - Point-of-sale server and method
