Abstract: A method of sending and receiving messages organized in threads, the method includes receiving messages posted by a group of one or more users to at least one message thread and posting messages to the at least one message thread for access by the group of users, the messages being sent to and received from a message server; displaying messages posted by one or more users of the group of users to the at least one message thread; receiving a user selection of a message in a parent message thread for the creation of a child message thread, the message having a message identifier; receiving a new message to post to the child message thread; posting the new message by sending the new message to the message server to be accessible by the group of users in the child message thread; creating or receiving a link between the message identifier for the selected message in the parent message thread and a new message identifier for the new message in the child message thread; and displaying the new message in the child m