3. The method of claim 1 , further comprising: receiving a request from a user device associated with an authorized conversation member to add a new member to the conversation, the request comprising specification of an electronic contact address associated with the new member; transmitting a notification to the electronic contact address associated with the new member; and conveying conversation-level privileges upon the new member.
3. The method of claim 1 , further comprising: receiving a request from a user device associated with an authorized conversation member to add a new member to the conversation, the request comprising specification of an electronic contact address associated with the new member; transmitting a notification to the electronic contact address associated with the new member; and conveying conversation-level privileges upon the new member. 8. The method of claim 3 , in which the conversation level privileges comprise authorization to view personally identifiable information associated with other conversation members.