Be sure to donate some quid to the Internet Archive (archive.org) to support their efforts to preserve (not just) old content, then do your best to make local copies of anything you find of value, just in case they disappear one day. A good number of mostly technical pages I have in my bookmarks file, that grew steadily and has been moved during installations for over 20 years, now point to their latest complete backup before the said page went silent. The Internet Archive is a huge boon to everyone.