Group conversation between a plurality of participants

A system and machine-implemented method for presenting a group conversation on an electronic device of a user, via displaying, on a graphical user interface of the electronic device, a group of contacts with which the user can communicate, the group of contacts comprising one or more individual contacts and one or more social circles which define a preset collection of contacts associated with one another; receiving user input via the graphical user interface, the user input specifying a selection of participants from the group of contacts for a group conversation, wherein the group conversation provides for sharing communication messages among the participants; and presenting a conversation window on the graphical user interface based on the received user input, wherein the conversation window displays a collection of contact icons with each contact icon respectively corresponding to one of the selected participants of the group conversation, and a conversation thread with the shared communication messages.