Electronic system for indirect intercommunication messaging, comprising at least one central processing unit acting as a server, and one or more user terminals (S, N, PC) adapted to be bidirectionally connected to said central processing unit, wherein: - each one of said user terminals (S, N, PC) comprises: means for preparing and sending to said central processing unit a request for contact with another one of said user terminals (S, N, PC), said contact request comprising data relating to at least one interaction genre and to the identification of said other user terminal (S, N, PC); means for receiving and displaying a contact request sent by said central processing unit and coming from another one of said user terminals (S, N, PC); - said central processing unit comprises means for: receiving and storing said contact requests coming from each one of said user terminals (S, N, PC); comparing said data contained in said contact requests; sending to a pair of said user terminals (S, N, PC) said requests for contact with the other user terminal (S, N, PC) of the pair only if and when coincidence is verified between the data relating to said at least one interaction genre of the contact requests and said pair of user terminals (S, N, PC) have been identified, so that said contact between said pair of user terminals (S, N, PC) can only be activated upon said coincidence verification, wherein said at least one interaction genre is represented by data relating to predetermined symbols or colors representative of categories of interactions, the interaction genre being one among: i) desire for non-exclusive interaction; ii) desire for exclusive interaction, with no sentimental implications and iii) desire for exclusive interaction with sentimental implications. - each one of said user terminals (S, N, PC) comprises: means for preparing and sending to said central processing unit a request for contact with another one of said user terminals (S, N, PC), said contact request comprising data relating to at least one interaction genre and to the identification of said other user terminal (S, N, PC); means for receiving and displaying a contact request sent by said central processing unit and coming from another one of said user terminals (S, N, PC); means for preparing and sending to said central processing unit a request for contact with another one of said user terminals (S, N, PC), said contact request comprising data relating to at least one interaction genre and to the identification of said other user terminal (S, N, PC); means for receiving and displaying a contact request sent by said central processing unit and coming from another one of said user terminals (S, N, PC); - said central processing unit comprises means for: receiving and storing said contact requests coming from each one of said user terminals (S, N, PC); comparing said data contained in said contact requests; sending to a pair of said user terminals (S, N, PC) said requests for contact with the other user terminal (S, N, PC) of the pair only if and when coincidence is verified between the data relating to said at least one interaction genre of the contact requests and said pair of user terminals (S, N, PC) have been identified, so that said contact between said pair of user terminals (S, N, PC) can only be activated upon said coincidence verification, wherein said at least one interaction genre is represented by data relating to predetermined symbols or colors representative of categories of interactions, the interaction genre being one among: i) desire for non-exclusive interaction; ii) desire for exclusive interaction, with no sentimental implications and iii) desire for exclusive interaction with sentimental implications. receiving and storing said contact requests coming from each one of said user terminals (S, N, PC); comparing said data contained in said contact requests; sending to a pair of said user terminals (S, N, PC) said requests for contact with the other user terminal (S, N, PC) of the pair only if and when coincidence is verified between the data relating to said at least one interaction genre of the contact requests and said pair of user terminals (S, N, PC) have been identified, so that said contact between said pair of user terminals (S, N, PC) can only be activated upon said coincidence verification, wherein said at least one interaction genre is represented by data relating to predetermined symbols or colors representative of categories of interactions, the interaction genre being one among: i) desire for non-exclusive interaction; ii) desire for exclusive interaction, with no sentimental implications and iii) desire for exclusive interaction with sentimental implications. i) desire for non-exclusive interaction; ii) desire for exclusive interaction, with no sentimental implications and iii) desire for exclusive interaction with sentimental implications.