S.E. Smith, writing for The Verge:
This is not a problem unique to me: a recent Pew Research Center study on digital decay found that 38 percent of webpages accessible in 2013 are not accessible today. This happens because pages are taken down, URLs are changed, and entire websites vanish, as in the case of dozens of scientific journals and all the critical research they contained. This is especially acute for news: researchers at Northwestern University estimate we will lose one-third of local news sites by 2025, and the digital-first properties that have risen and fallen are nearly impossible to count. The internet has become a series of lacunas, spaces where content used to be.