I know it's not a new idea, but I still find it amazing that websites are here today, changed and then gone tomorrow. Printed matter is kept and archived away for ever more, but websites are changed and lost. How will we look back and understand what the style of 2012 was when we get to 2022? What did this website look like last year, let alone 10 years ago? I have always kept my library of the changes because I have been aware of the changing nature of websites, and how even small changes accumulate to become big changes over time. I have now come across wayback.org which does the job properly and keeps a very extensive and just slightly addictive archive of seemingly any website you can think of.
I am building our own library up of old websites and catalogues and more, and will find the right way to post it all online soon.