13. The system of claim 12 wherein the fourth program instructions are further to update a previous calendar event if the specific event information matches information of the previous calendar event and comprises a time stamp that is different from a time stamp of the previous calendar event information.
12. The system of claim 9 wherein the second program instructions are further to periodically check the body content of the web page for a presence of a calendar tag; and wherein the third program instructions are further to identify the RSS-retrievable specific event information in response to the presence of the calendar tag.