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Google’s shortened links will stop working next year
(www.theverge.com)
This is a most excellent place for technology news and articles.
If they just released the db, I think there are be many who'd be happy to host the service. But knowing Google, they probably won't do shit.
The Internet Archive could archive them forever.
Archiveteam has had a project trying to archive all of them they've seen for a few years now. https://wiki.archiveteam.org/index.php/URLTeam