The present invention pertains to a method for delivering messages in a social network to increase a signal-to-noise ratio for the recipients of messages, characterized in that a process mechanism comprises of a diffusion process and a selection process combined through an adaptive process, in which: the diffusion process dispatches each message through dynamic routing graphs defined between the sender user and a set of potentially interested recipient users; the selection process locally filters the messages that are transmitted from sender users and received by potentially interested recipient users, according to the result of the application of a selection function on the metadata values constituting a message profile extracted from each transmitted message and weighted feature values constituting a user profile of the recipient to establish an estimate of interest for the user regarding each message, and the adaptive process continuously adjusts processing functions to adapt the graphs structure according to the user profiles dynamically updated by message metadata.