Abstract: A system and method which manages contacts using a structured hierarchy comprising at least two levels is disclosed. Accordingly, a first contact is introduced or referred to a user by a second contact. In the system a user interface receives information about the first contact and a database stores the received information, wherein the information at least comprises the second contact that introduced the first contact to the user. A structured hierarchy application arranges the contacts within the structured hierarchy, wherein the first contact is adjacent to but not on the same level as the second contact. If the first contact was not introduced to the user by another contact then the first contact is adjacent to the user. The user can access the structured hierarchy to manage his contacts. A vendor network may interface the structured hierarchy for providing items and services to the contacts.