Similar to the document subscription system in the PowerWeb, I would like to see the ability for the Explorer User to subscribe for automated notification of document updates. In addition it would add flexibility and power if a user could subscribe to a document collection for notification of updates to all documents with in that collection. This would allow an experienced use to create (and manage) a collection that several people/groups need notification on updates. This benefits many users who need to be notified of document updates, and benefits the Power User by reducing the need for manual notification.