Abstract: The present invention relates to a method, a processing device, and a system for providing message(s) to a user of e.g. a mobile terminal. The method comprises receiving a message(s) including an indication in a processing device and retrieving a personal file, which is stored in a personal unit, in the processing device. After receiving the message(s) and the personal profile, the processing device compares the personal profile and the indication. Therefore, in case the personal profile and the indication match, showing the message(s) to the user or in case the personal profile and the indication do not match, not showing the message(s) to the user.

Abstract: The present invention relates to an analyzer, a system, a method, and a computer-readable medium for defining a preferred group of users, wherein the group is defined in the following way. The analyzer receives data from a data network node, which may be e.g. a (plurality of) data-base(s). After receiving the data, there is determined a social network of the users and a set of parameters for each user. The set of parameters may comprise e.g. an innovator score, a repeat user score and a social influence score. After the above determination, there is determined the preferred group of users based on the social network and the set of parameters. The information (or indication) of the preferred group of users may be utilized in various marketing activities (e.g. product launch or churn management).