1. Method for determining and notifying users having substantially matching preference profiles, for accessing a multiple access online application destined for a plurality of mobile terminal devices each being connected to a wireless communication network and being related to said users, said method comprising: receiving a preference profile including identification data and preference data related to at least one of said users, from a mobile terminal related to said at least one user; saving said received identification data and said received preference data in a user database, said user database containing preference data of at least one other user; comparing said received preference data with said preference data of said at least one other user for determining users of substantially matching preference data; determining a plurality of users having said substantially matching preference data; and sending a notification to each of said mobile terminals related to said determined users.