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Online Content Is Disappearing
(www.pewresearch.org)
This is a most excellent place for technology news and articles.
Already a lot of stuff is becoming one harddrive failure away from being lost forever. Companies don't care about preserving content, so it's largely up to random people happening to have saved a copy of something for it to still exist at all.
And National Libraries and similar institutions around the world, for example https://www.nb.no/en/digital-preservation/