9. The method of claim 2 , wherein the information in the electronic message conversation data structure pertaining to each of the electronic message in the electronic message conversation comprises: (1) an indication of an electronic message type for that electronic message; (2) an indication of which participant in the electronic message conversation sent that electronic message; and (3) a sequence indicator indicating an order in which that electronic message was sent by that participant relative to other electronic messages of the same electronic message type sent by that participant in the electronic message conversation.
9. The method of claim 2 , wherein the information in the electronic message conversation data structure pertaining to each of the electronic message in the electronic message conversation comprises: (1) an indication of an electronic message type for that electronic message; (2) an indication of which participant in the electronic message conversation sent that electronic message; and (3) a sequence indicator indicating an order in which that electronic message was sent by that participant relative to other electronic messages of the same electronic message type sent by that participant in the electronic message conversation. 10. The method of claim 9 , wherein the set of information pertaining to the received electronic message comprises: (1) an indication of a particular electronic message type for the received electronic message; (2) an indication that the received electronic message was sent by a particular participant in the electronic message conversation; and (3) a particular sequence indicator indicating an order in which the received electronic message was sent by the particular participant relative to other electronic messages of the particular electronic message type sent by the particular participant in the electronic message conversation.