1. A method for determining a visibility of an online conversation for a new participant, the method comprising: presenting a user interface (UI) to a group of users to allow each of the users in the group of users to specify tags, the tags defining relationships between each of the users; determining initial participants from the group of users for an online conversation on a social network, the online conversation created by at least one member of the initial participants to communicate among each other; identifying, based on the tags, a subject for the online conversation with respect to each of the initial participants of the online conversation; the tags being assigned to each of the initial participants associated with the online conversation by at least one of the users in the group of users; determining, based on the subject, a visibility of the online conversation for a new participant from the group of users; in which the visibility is further based on a tolerant mode, the tolerant mode allowing the new participant to access the online conversation if at least one of the tags of at least one of the initial participants defines a subject for which the new participant is also tagged.
1. A method for determining a visibility of an online conversation for a new participant, the method comprising: presenting a user interface (UI) to a group of users to allow each of the users in the group of users to specify tags, the tags defining relationships between each of the users; determining initial participants from the group of users for an online conversation on a social network, the online conversation created by at least one member of the initial participants to communicate among each other; identifying, based on the tags, a subject for the online conversation with respect to each of the initial participants of the online conversation; the tags being assigned to each of the initial participants associated with the online conversation by at least one of the users in the group of users; determining, based on the subject, a visibility of the online conversation for a new participant from the group of users; in which the visibility is further based on a tolerant mode, the tolerant mode allowing the new participant to access the online conversation if at least one of the tags of at least one of the initial participants defines a subject for which the new participant is also tagged. 5. The method of claim 1 , in which the visibility is further based on a strict mode, the strict mode allowing the new participant to access the online conversation if at least one of the tags from all of the initial participants for the new participant matches the subject of the online conversation.