9. A system for utilizing web-based information for generating and updating calendar events from non-calendar sources, the system comprising: a processing unit, computer readable memory and a computer readable storage system; first program instructions to define a list of criteria relating to calendar events and a keyword and specify at least one information source uniform resource locator address where events of a type of the keyword may be found; second program instructions to link-up and periodically check content in a body of a web page at each of the at least one information source web page uniform resource locator addresses for a presence of a time stamp and apply a keyword filter to search for information in a text format on said source that is tagged with an embedded HTML tag related to the keyword and accessible when searching for the information; and third program instructions to search for the keyword and identify in the at least one information source web page content RSS-retrievable specific event information in response to the presence of the time stamp and the embedded tag, and to automatically convert the RSS-retrievable specific event information into a calendar event associated with the keyword and having a time, a date and a subject in a calendar format that is different from the RSS-retrievable specific event information text format; and fourth program instructions to add the calendar event into a user calendar and display the calendar event to a user of the user calendar in association with the keyword, and to link any changes in the filtered information regarding user-specified keywords to the calendar of the user; and wherein the first, second, third and fourth program instructions are stored on the computer readable storage system for execution by the processing unit via the computer readable memory.
11. The system according to claim 9 wherein the HTML tags are generated by a list creator and the user defines and subscribes to tags selected by the user.