Ever tried the web archive? I was looking at the old days of HVAC-Talk as well as some manufacturer's previous websites, so I thought I'd post this here for you all to look if you'd like. Some sites are archived from the 90s. It can be slow, and not everything is archived; nevertheless it's interesting in my opinion to see how far things have come.
Edit: Meant to post this in General Discussion. Would a mod mind moving it? Thanks.