CPC Class H04W

A method, system and a computer program product are provided for organizing a community based on subject-related contributions by classifying user contributions Ci from a plurality of users in a community according to a plurality of subjects Sj to identify subjects in each user contribution, assembling one or more community quality values for each user that generated the user contribution, computing a subject-based quality rating for each user as a sum of a first contribution score based on community quality values for each user's recent contributions to the identified subject and a second contribution score based on community quality values for the user's past contributions to the identified subject, and ranking the plurality of users based on the subject-based quality ratings.

In general, the invention relates to a system and method of operating a shopping system to facilitate payment using a mobile device. A network is configured to include a server programmed with a personal characteristic database, a database searching algorithm, and to be coupled to a wireless communication system that is capable of communicating with the user's personal data device. The user logs on through the wireless communication system to the secure network using her personal data device, and communicates to and stores in the database personal data defining her characteristics. Either the secure network automatically identifies the first users precise geographic location, or the user himself otherwise indicates and stores in the database of the network an identifying address that indicates his current specific geographic location. Personal data defining the user's characteristics are then sent to a business location at the user's location to facilitate a payment transaction.

A server receives a request to play a selected playlist from a first electronic device associated with a host listener. The playlist includes audio items having a common attribute. The server also receives an identity of a guest listener having a second electronic device and retrieves an indication of taste of the guest listener based on the received identity. The server selects an additional audio item based at least in part on the indication of taste of the guest listener and the common attribute of the audio items of the selected playlist, and incorporates the additional audio item into the selected playlist.

A method for providing user-customized information is disclosed. The method for providing user-customized information can provide information suitable for a user's situation by: obtaining information on a location where a terminal is located, and information on the time when the location information was obtained; obtaining situation information of a user of the terminal predicted on the basis of the location information and the time information; and requesting, to a server, situation-adaptive information corresponding to the user's situation on the basis of the obtained situation information of the user, pre-stored profile information of the user, and state information of the terminal at a time when the location information is obtained so as to obtain the situation-adaptive information from the server.