Method and system for selective sharing of flagged information in a group chat environment

A system for selective sharing of flagged information in a group chat (i.e. instant messaging) that generates a user interface object enabling a flag setting participant to indicate which of the other chat participants can see a visible flag they are setting in association with selected content of the chat session. The flag is then visible only to those indicated other participants, both during the chat session and within copies of the saved chat transcript. A user interface object (e.g. a context window) provides chat participants with the ability to conveniently identify information about individual flags in the chat session, such as the identity of the participant that set a flag, when the flag was created, the priority associated with the flag, and/or other information. The system further enables chat participants to filter the contents of a chat transcript, so that only a subset of the chat transcript is displayed, based on flags contained in the transcript. Chat participants can also associate priorities with specific individual flags and/or all flags set by a given participant, and/or generate a "to do" list based on the flags in the transcript.