By Joshua.lyon, a member of Networked Media Tank community:
NewzBook monitors your Newzbin bookmarks and automatically downloads the NZB files when a new bookmark is found. By default, NewzBook is configured to send the NZB files the NZBget to be downloaded.
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Discussion on NMT Forum
I suggest to keep the discussion on NMT Forum, because NZBGet's forum is probably not monitored by the author of the tool.