Webpart to share same data to other webparts on different pages

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From: anth007 (anth007_at_burntmail.com)
Date: 05/04/04 

Date: Tue, 4 May 2004 13:13:09 +1000

For example: we have a corperate calander that needs to be shared accross 3
different pages - surely I dont have to create 3 seperate calanders and add
an event three times? I should be able to to add an event on any of the
calanders and all 3 will be updated. So how would I use the same webpart
(with the same data contained in it) on other pages?