Patent ID: 7991637

Claim:
A computer readable storage medium for a digital processing system, the storage medium storing program code that when processed by the digital processing system of a first user causes the digital processing system to perform a method, the method comprising: receiving a respective calendar of events for each of a plurality of other users; sending to respective electronic systems of each of the other users a first calendar of the first user's activities and a second calendar of the first user's activities, the first calendar containing work related activities of the first user, the second calendar containing personal activities of the first user; receiving a modification created by one of the other users to one of the first or second calendars of the first user's activities, the modification being one of: i) a new event; ii) a change to an existing event; wherein, the modification is appended with a message from the other user, and wherein, the receiving does not include the first user actively fetching the modification and/or message from a server where the modification and/or message is posted; automatically displaying the modification and the message substantially simultaneously on a display of the digital processing system in an updated calendar; sending notice to the respective electronic systems of the plurality of other users that the first user is aware of the modification, the notice including a time at which the first user viewed the modification, the time to be rendered in respective displays of the respective electronic systems of the other users along with notification that the first user is aware of the modification, the sending being triggered by any of the following: (i) the first user affirmatively taking action in a region of the display of the digital processing system that is reserved for the first user to acknowledge the modification; (ii) the display of the digital processing system rendering, for the first time since the modification was received by the digital processing system, the one of the first user's first and second calendar of activities to which the modification was made.