hi all riding on Calendar tag, and borrowing some codes from Udell's calendar example, i came out with a simple calendar of events product. events are stored in an RDB. simple table and queries used, therefore no dependency on special RDB features. give it a go. this is an exercise in product making, and comments, pointers, bugs, etc welcome. http://www.zope.org/Members/kedai/SempoiCalendar thanks